Finding the Third Proportional to 506,891.25 and 708,667.31

Step by Step Solution

1. Step 1: Write the proportion equation
   506,891.25 : 708,667.31 = 708,667.31 : x
2. Step 2: Convert to fraction form
   506,891.25/708,667.31 = 708,667.31/x
3. Step 3: Cross multiply
   506,891.25x = 708,667.31 × 708,667.31
4. Step 4: Simplify right side
   506,891.25x = 502,209,359,805.97
5. Step 5: Solve for x
   x = 502,209,359,805.97/506,891.25
6. Step 6: Final answer
   x = 990,763.52