Finding the Third Proportional to 339,892.45 and 714,776.91

Step by Step Solution

1. Step 1: Write the proportion equation
   339,892.45 : 714,776.91 = 714,776.91 : x
2. Step 2: Convert to fraction form
   339,892.45/714,776.91 = 714,776.91/x
3. Step 3: Cross multiply
   339,892.45x = 714,776.91 × 714,776.91
4. Step 4: Simplify right side
   339,892.45x = 510,906,025,708.32
5. Step 5: Solve for x
   x = 510,906,025,708.32/339,892.45
6. Step 6: Final answer
   x = 1,503,140.25