1. **State the problem:** We need to find the volume of a rectangular prism with dimensions 6 cm, 6 cm, and 6 cm. 2. **Formula:** The volume $V$ of a rectangular prism is given by the formula: $$V = \text{length} \times \text{width} \times \text{height}$$ 3. **Apply the formula:** Here, length = 6 cm, width = 6 cm, and height = 6 cm. 4. **Calculate the volume:** $$V = 6 \times 6 \times 6$$ 5. **Simplify:** $$V = 36 \times 6$$ 6. **Final calculation:** $$V = 216$$ 7. **Answer:** The volume of the rectangular prism is $216$ cubic centimeters. Since the problem asks for the answer to the nearest tenth, we write: $216.0$ cubic centimeters.