Finding the Third Proportional to 66,904.88 and 91,741.78

Step by Step Solution

1. Step 1: Write the proportion equation
   66,904.88 : 91,741.78 = 91,741.78 : x
2. Step 2: Convert to fraction form
   66,904.88/91,741.78 = 91,741.78/x
3. Step 3: Cross multiply
   66,904.88x = 91,741.78 × 91,741.78
4. Step 4: Simplify right side
   66,904.88x = 8,416,554,426.92
5. Step 5: Solve for x
   x = 8,416,554,426.92/66,904.88
6. Step 6: Final answer
   x = 125,798.82