Finding the Third Proportional to 68,810.50 and 96,900.75

Step by Step Solution

1. Step 1: Write the proportion equation
   68,810.50 : 96,900.75 = 96,900.75 : x
2. Step 2: Convert to fraction form
   68,810.50/96,900.75 = 96,900.75/x
3. Step 3: Cross multiply
   68,810.50x = 96,900.75 × 96,900.75
4. Step 4: Simplify right side
   68,810.50x = 9,389,755,350.56
5. Step 5: Solve for x
   x = 9,389,755,350.56/68,810.50
6. Step 6: Final answer
   x = 136,458.18