Equilibrium Constant Calculation

In a closed system, a reversible reaction reaches equilibrium as follows:

A(g) + 2B(g) ⇌ 3C(g)

The equilibrium concentrations of the reactants and products at a certain temperature are as follows:

[A] = 0.5 M, [B] = 0.5 M, [C] = 1.5 M.

Using the equilibrium concentrations provided, calculate the equilibrium constant (K_c) for the reaction.