Finding the Third Proportional to 457,326 and 657,679.50

Step by Step Solution

1. Step 1: Write the proportion equation
   457,326 : 657,679.50 = 657,679.50 : x
2. Step 2: Convert to fraction form
   457,326/657,679.50 = 657,679.50/x
3. Step 3: Cross multiply
   457,326x = 657,679.50 × 657,679.50
4. Step 4: Simplify right side
   457,326x = 432,542,324,720.25
5. Step 5: Solve for x
   x = 432,542,324,720.25/457,326
6. Step 6: Final answer
   x = 945,807.42