Finding the Third Proportional to 88,618.50 and 132,619.50

Step by Step Solution

1. Step 1: Write the proportion equation
   88,618.50 : 132,619.50 = 132,619.50 : x
2. Step 2: Convert to fraction form
   88,618.50/132,619.50 = 132,619.50/x
3. Step 3: Cross multiply
   88,618.50x = 132,619.50 × 132,619.50
4. Step 4: Simplify right side
   88,618.50x = 17,587,931,780.25
5. Step 5: Solve for x
   x = 17,587,931,780.25/88,618.50
6. Step 6: Final answer
   x = 198,467.95