Finding the Third Proportional to 88,647.75 and 136,255.50

Step by Step Solution

1. Step 1: Write the proportion equation
   88,647.75 : 136,255.50 = 136,255.50 : x
2. Step 2: Convert to fraction form
   88,647.75/136,255.50 = 136,255.50/x
3. Step 3: Cross multiply
   88,647.75x = 136,255.50 × 136,255.50
4. Step 4: Simplify right side
   88,647.75x = 18,565,561,280.25
5. Step 5: Solve for x
   x = 18,565,561,280.25/88,647.75
6. Step 6: Final answer
   x = 209,430.71