Answer:
$192,340
Step-by-step explanation:
Since Harvey and Ling bought their second home on September 1, 2018 and sold it 6 months later, in February 28, 2019, they can claim a partial § 121 exclusion on the gains resulting from the selling of the second home.
Total gains from the sale of the second home = $317,340 - $125,000 (§ 121 exclusion = $500,000 x 6/24 months ) = $192,340