Finding the Third Proportional to 64,165.50 and 91,604.25

Step by Step Solution

1. Step 1: Write the proportion equation
   64,165.50 : 91,604.25 = 91,604.25 : x
2. Step 2: Convert to fraction form
   64,165.50/91,604.25 = 91,604.25/x
3. Step 3: Cross multiply
   64,165.50x = 91,604.25 × 91,604.25
4. Step 4: Simplify right side
   64,165.50x = 8,391,338,618.06
5. Step 5: Solve for x
   x = 8,391,338,618.06/64,165.50
6. Step 6: Final answer
   x = 130,776.49