Finding the Third Proportional to 344,128.50 and 756,337.50

Step by Step Solution

1. Step 1: Write the proportion equation
   344,128.50 : 756,337.50 = 756,337.50 : x
2. Step 2: Convert to fraction form
   344,128.50/756,337.50 = 756,337.50/x
3. Step 3: Cross multiply
   344,128.50x = 756,337.50 × 756,337.50
4. Step 4: Simplify right side
   344,128.50x = 572,046,413,906.25
5. Step 5: Solve for x
   x = 572,046,413,906.25/344,128.50
6. Step 6: Final answer
   x = 1,662,304.67