Finding the Third Proportional to 61,222.50 and 89,737.88

Step by Step Solution

1. Step 1: Write the proportion equation
   61,222.50 : 89,737.88 = 89,737.88 : x
2. Step 2: Convert to fraction form
   61,222.50/89,737.88 = 89,737.88/x
3. Step 3: Cross multiply
   61,222.50x = 89,737.88 × 89,737.88
4. Step 4: Simplify right side
   61,222.50x = 8,052,886,209.52
5. Step 5: Solve for x
   x = 8,052,886,209.52/61,222.50
6. Step 6: Final answer
   x = 131,534.75