CREATE TABLE table_1682026_3 (profits__billion_$_ VARCHAR, market_value__billion_$_ VARCHAR)

What are the profits (in billions) of the company with a market value of 172.9 billion?
SELECT profits__billion_$_ FROM table_1682026_3 WHERE market_value__billion_$_ = "172.9"
SELECT "profits__billion_$_" FROM "table_1682026_3" WHERE "172.9" = "market_value__billion_$_"