It is estimated that X has around 500 monthly active users.
Did you mean to say thousand or million?
I honestly don't think Disney is up for sale, particularly to Elon who has insulted the company at every opportunity, but I don't think Elon could actually afford Disney. Twitter has lost a significant percentage of its value since he took over, and as far as I know the revenue its taking in is a fraction of what it used to. He'd have to sell his shares in Tesla, which is already down 25% YTD and I imagine if he showed any interest in buying Disney $TSLA would dive on the news.
I'm not sure why Twitter would jump up from $12.5 billion to over $100 billion instantly. I don't think there is much overlap between Twitter customer and Disney customers at the moment.