To find the surface area of the rectangular prism, we need to add up the areas of all the rectangles.
The surface area of the rectangular prism can be calculated as follows:
First rectangle (top): 54 square inches
Second rectangle (bottom): 24 square inches
Third rectangle (front): 36 square inches
Fourth rectangle (back): 36 square inches
Fifth rectangle (left side): 54 square inches
Sixth rectangle (right side): 54 square inches
Adding all these areas together:
54 + 24 + 36 + 36 + 54 + 54 = 258 square inches
Therefore, the surface area of the rectangular prism is 258 square inches.