Finding the Third Proportional to 88,128 and 132,387.38

Step by Step Solution

1. Step 1: Write the proportion equation
   88,128 : 132,387.38 = 132,387.38 : x
2. Step 2: Convert to fraction form
   88,128/132,387.38 = 132,387.38/x
3. Step 3: Cross multiply
   88,128x = 132,387.38 × 132,387.38
4. Step 4: Simplify right side
   88,128x = 17,526,417,059.39
5. Step 5: Solve for x
   x = 17,526,417,059.39/88,128
6. Step 6: Final answer
   x = 198,874.56