Finding the Third Proportional to 250,332 and 387,380

Step by Step Solution

1. Step 1: Write the proportion equation
   250,332 : 387,380 = 387,380 : x
2. Step 2: Convert to fraction form
   250,332/387,380 = 387,380/x
3. Step 3: Cross multiply
   250,332x = 387,380 × 387,380
4. Step 4: Simplify right side
   250,332x = 150,063,264,400
5. Step 5: Solve for x
   x = 150,063,264,400/250,332
6. Step 6: Final answer
   x = 599,456.98