Finding the Third Proportional to 91,366.50 and 140,616.75

Step by Step Solution

1. Step 1: Write the proportion equation
   91,366.50 : 140,616.75 = 140,616.75 : x
2. Step 2: Convert to fraction form
   91,366.50/140,616.75 = 140,616.75/x
3. Step 3: Cross multiply
   91,366.50x = 140,616.75 × 140,616.75
4. Step 4: Simplify right side
   91,366.50x = 19,773,070,380.56
5. Step 5: Solve for x
   x = 19,773,070,380.56/91,366.50
6. Step 6: Final answer
   x = 216,414.88