Engineer here. Don't worry guys I got this.

If we simplify the storage area into a 3D geometric area and the watermelons into a sphere, assuming watermelon packing is 75% of the space, we can calculate the number of melons as the packing coefficient times the volume of the space over the volume of an average melon.

N_FCC ≈ (0.75 × (L × W × H)) / ((4/3) × π × r^3)

Eat shit, meme. 😂