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
$$
P(L, K)=1.47 L^{0.65} K^{0.35}
$$
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.