Finding the Third Proportional to 72,288 and 108,504

Step by Step Solution

1. Step 1: Write the proportion equation
   72,288 : 108,504 = 108,504 : x
2. Step 2: Convert to fraction form
   72,288/108,504 = 108,504/x
3. Step 3: Cross multiply
   72,288x = 108,504 × 108,504
4. Step 4: Simplify right side
   72,288x = 11,773,118,016
5. Step 5: Solve for x
   x = 11,773,118,016/72,288
6. Step 6: Final answer
   x = 162,864.07