Finding the Third Proportional to 61,105.50 and 89,470.69

Step by Step Solution

1. Step 1: Write the proportion equation
   61,105.50 : 89,470.69 = 89,470.69 : x
2. Step 2: Convert to fraction form
   61,105.50/89,470.69 = 89,470.69/x
3. Step 3: Cross multiply
   61,105.50x = 89,470.69 × 89,470.69
4. Step 4: Simplify right side
   61,105.50x = 8,005,003,921.72
5. Step 5: Solve for x
   x = 8,005,003,921.72/61,105.50
6. Step 6: Final answer
   x = 131,003.00