Answer
The lift on the wing is $3.2\times 10^6~N$
Work Step by Step
We can use Bernoulli's equation to find the pressure difference below the wing and above the wing. Let $P_1$ be the pressure below the wing and let $P_2$ be the pressure above the wing.
$P_1 + \frac{1}{2}\rho~v_1^2 = P_2 + \frac{1}{2}\rho~v_2^2$
$P_1-P_2 = \frac{1}{2}\rho~(v_2^2-v_1^2)$
$P_1-P_2 = \frac{1}{2}(1.29~kg/m^3)~[(280~m/s)^2-(150~m/s)^2]$
$P_1-P_2 = 3.6\times 10^4~N/m^2$
We can find the upward force exerted on the wing from the pressure difference.
$F = (P_1-P_2)~A$
$F = (3.6\times 10^4~N/m^2)(88~m^2)$
$F = 3.2\times 10^6~N$
The lift on the wing is $3.2\times 10^6~N$.