You do know that Apple is worth more than Microsoft and Google combined...so Microsoft wouldn't even be able to buy Intel either.lol
Intel are a huge company. Apple couldn't afford to buy them. Microsoft would probably buy Intel before Apple could.
Apple is also America's first company that's worth over $700 billion. So if the FTC approves, Apple could buy Intel, but they can't because of the FTC and because they don't need to anyway.