Finding the Third Proportional to 250,317 and 387,625.50

Step by Step Solution

1. Step 1: Write the proportion equation
   250,317 : 387,625.50 = 387,625.50 : x
2. Step 2: Convert to fraction form
   250,317/387,625.50 = 387,625.50/x
3. Step 3: Cross multiply
   250,317x = 387,625.50 × 387,625.50
4. Step 4: Simplify right side
   250,317x = 150,253,528,250.25
5. Step 5: Solve for x
   x = 150,253,528,250.25/250,317
6. Step 6: Final answer
   x = 600,252.99