Even if it was just an estimate, if Titanium Phone Company was really worth 50 billion, there would definitely be people who wanted it.
The problem then wouldn't be the 50 billion figure, but how to complete the acquisition — after all, it was practically impossible to pay 50 billion in cash.
After considering it from several angles, the buyer and seller wouldn't make such a ridiculous deal.
In fact, Titanium Phone Company was already very strong.
After all, their R&D costs were practically zero and they had more than one generation of phone technology; the company had easily skipped the initial stages which were the most painful for most companies pursuing any venture.
Naturally, current R&D wasn't entirely dependent on Luke. He only set a research direction and solved some particularly tricky issues, before leaving the rest to the phone company's technology department.