Finding the Third Proportional to 258,727.50 and 565,542

Step by Step Solution

1. Step 1: Write the proportion equation
   258,727.50 : 565,542 = 565,542 : x
2. Step 2: Convert to fraction form
   258,727.50/565,542 = 565,542/x
3. Step 3: Cross multiply
   258,727.50x = 565,542 × 565,542
4. Step 4: Simplify right side
   258,727.50x = 319,837,753,764
5. Step 5: Solve for x
   x = 319,837,753,764/258,727.50
6. Step 6: Final answer
   x = 1,236,195.43