Finding the Third Proportional to 72,288 and 108,048

Step by Step Solution

1. Step 1: Write the proportion equation
   72,288 : 108,048 = 108,048 : x
2. Step 2: Convert to fraction form
   72,288/108,048 = 108,048/x
3. Step 3: Cross multiply
   72,288x = 108,048 × 108,048
4. Step 4: Simplify right side
   72,288x = 11,674,370,304
5. Step 5: Solve for x
   x = 11,674,370,304/72,288
6. Step 6: Final answer
   x = 161,498.04