1. The problem is to convert 30 cubic feet into cubic inches using the conversion factor 1 foot = 12 inches. 2. To convert cubic feet to cubic inches, we use the fact that 1 cubic foot equals $12^3$ cubic inches because volume conversion involves cubing the linear conversion factor. 3. Calculate $12^3 = 12 \times 12 \times 12 = 1728$ cubic inches per cubic foot. 4. Multiply 30 cubic feet by 1728 cubic inches per cubic foot: $$30 \times 1728 = 51840$$ 5. Therefore, 30 cubic feet is equal to 51840 cubic inches. 6. Rounded to three decimal places, the answer remains 51840.000 cubic inches.