Finding the Third Proportional to 66,914.50 and 91,756.75

Step by Step Solution

1. Step 1: Write the proportion equation
   66,914.50 : 91,756.75 = 91,756.75 : x
2. Step 2: Convert to fraction form
   66,914.50/91,756.75 = 91,756.75/x
3. Step 3: Cross multiply
   66,914.50x = 91,756.75 × 91,756.75
4. Step 4: Simplify right side
   66,914.50x = 8,419,301,170.56
5. Step 5: Solve for x
   x = 8,419,301,170.56/66,914.50
6. Step 6: Final answer
   x = 125,821.78