A manufacturer has modeled its yearly production function $ P $ (the monetary value of its entire production in millions of dollars) as a Cobb-Douglas function
$$ P(L, K) = 1.47L^{0.65}K^{0.35} $$
where $ L $ is the number of labor hours (in thousands) and $ K $ is the invested capital (in millions of dollars). Find $ P(120, 20) $ and interpret it.