Finding the Third Proportional to 505,592.72 and 711,151.78

Step by Step Solution

1. Step 1: Write the proportion equation
   505,592.72 : 711,151.78 = 711,151.78 : x
2. Step 2: Convert to fraction form
   505,592.72/711,151.78 = 711,151.78/x
3. Step 3: Cross multiply
   505,592.72x = 711,151.78 × 711,151.78
4. Step 4: Simplify right side
   505,592.72x = 505,736,855,975.05
5. Step 5: Solve for x
   x = 505,736,855,975.05/505,592.72
6. Step 6: Final answer
   x = 1,000,285.09