Finding the Third Proportional to 215,727.50 and 337,675

Step by Step Solution

1. Step 1: Write the proportion equation
   215,727.50 : 337,675 = 337,675 : x
2. Step 2: Convert to fraction form
   215,727.50/337,675 = 337,675/x
3. Step 3: Cross multiply
   215,727.50x = 337,675 × 337,675
4. Step 4: Simplify right side
   215,727.50x = 114,024,405,625
5. Step 5: Solve for x
   x = 114,024,405,625/215,727.50
6. Step 6: Final answer
   x = 528,557.58