Finding the Third Proportional to 51,108.50 and 71,618.50

Step by Step Solution

1. Step 1: Write the proportion equation
   51,108.50 : 71,618.50 = 71,618.50 : x
2. Step 2: Convert to fraction form
   51,108.50/71,618.50 = 71,618.50/x
3. Step 3: Cross multiply
   51,108.50x = 71,618.50 × 71,618.50
4. Step 4: Simplify right side
   51,108.50x = 5,129,209,542.25
5. Step 5: Solve for x
   x = 5,129,209,542.25/51,108.50
6. Step 6: Final answer
   x = 100,359.23