I do not believe that this has already happened. I think the media is trying to get views. Thats why they are spreading these news. As far as I know, Cristiano Ronaldo has been offered this amount of money. Basically, he has been approached with this offer from Al Nassr. He has not yet accepted it. I think if he does not get any really good teams, accepting this type of money is always good for the future of anyone. I think he should go for money at this stage of his career, regardless of how much money he already has.
I agreed with you about this all this is surely not realistic news and mostly having just for the media intention because Saudi Arab Soccer League is having not enough allocation for the covering of this all and most chances Ronaldo is not going to join any club outside UEFA because his all sights are set for the next seasons Champions League and with this most chances he will stay here in England or most chances his second destination could be Italy where some clubs are interested but currently nothing is clear because recently we have few clubs are facing tough financial issues and which club can afford him it's also not easy.
But, good advantage which is going to help him is now he is free agent which is good but his personal terms and salary is also problem as we have this in last season with Atlético Madrid, Roma and Napoli all fail to compete with his personal terms.