Finding the Third Proportional to 66,895.25 and 91,731.63

Step by Step Solution

1. Step 1: Write the proportion equation
   66,895.25 : 91,731.63 = 91,731.63 : x
2. Step 2: Convert to fraction form
   66,895.25/91,731.63 = 91,731.63/x
3. Step 3: Cross multiply
   66,895.25x = 91,731.63 × 91,731.63
4. Step 4: Simplify right side
   66,895.25x = 8,414,691,025.14
5. Step 5: Solve for x
   x = 8,414,691,025.14/66,895.25
6. Step 6: Final answer
   x = 125,789.07