Finding the Third Proportional to 64,338.75 and 99,425.25

Step by Step Solution

1. Step 1: Write the proportion equation
   64,338.75 : 99,425.25 = 99,425.25 : x
2. Step 2: Convert to fraction form
   64,338.75/99,425.25 = 99,425.25/x
3. Step 3: Cross multiply
   64,338.75x = 99,425.25 × 99,425.25
4. Step 4: Simplify right side
   64,338.75x = 9,885,380,337.56
5. Step 5: Solve for x
   x = 9,885,380,337.56/64,338.75
6. Step 6: Final answer
   x = 153,645.83