Finding the Third Proportional to 66,040.50 and 99,373.50

Step by Step Solution

1. Step 1: Write the proportion equation
   66,040.50 : 99,373.50 = 99,373.50 : x
2. Step 2: Convert to fraction form
   66,040.50/99,373.50 = 99,373.50/x
3. Step 3: Cross multiply
   66,040.50x = 99,373.50 × 99,373.50
4. Step 4: Simplify right side
   66,040.50x = 9,875,092,502.25
5. Step 5: Solve for x
   x = 9,875,092,502.25/66,040.50
6. Step 6: Final answer
   x = 149,530.86