With today’s report from AllThingsD about the iPad 3 being announced in the first week of March, it has pushed Apple’s stock during intraday trading to an all-time high of $496.75US per share. Apple’s market cap is now at 459.82 billion, and is close to breaking a half trillion dollar valuation. Apple alone is now worth more than both Microsoft and Google combined.

Last September Apple blew by Exxon Mobile to become the world’s largest company in stock valuation, and the lead now sits at $58 billion dollars.

Since the death of Steve Jobs, the company has grown by more than $90 billion, with the most recent 2011 fourth quarter generating records in both revenue and profit. Apple has $81.6 billion in cash on hand as of the latest quarter, and with recent rumours of an iTV set to launch soon, there’s no end in sight to the growth of the company.

Any stockholders out there? Share the price you bought AAPL at!