Finding the Third Proportional to 88,128.75 and 132,388.88

Step by Step Solution

1. Step 1: Write the proportion equation
   88,128.75 : 132,388.88 = 132,388.88 : x
2. Step 2: Convert to fraction form
   88,128.75/132,388.88 = 132,388.88/x
3. Step 3: Cross multiply
   88,128.75x = 132,388.88 × 132,388.88
4. Step 4: Simplify right side
   88,128.75x = 17,526,814,223.77
5. Step 5: Solve for x
   x = 17,526,814,223.77/88,128.75
6. Step 6: Final answer
   x = 198,877.37