Finding the Third Proportional to 250,536 and 387,468

Step by Step Solution

1. Step 1: Write the proportion equation
   250,536 : 387,468 = 387,468 : x
2. Step 2: Convert to fraction form
   250,536/387,468 = 387,468/x
3. Step 3: Cross multiply
   250,536x = 387,468 × 387,468
4. Step 4: Simplify right side
   250,536x = 150,131,451,024
5. Step 5: Solve for x
   x = 150,131,451,024/250,536
6. Step 6: Final answer
   x = 599,241.03