Finding the Third Proportional to 250,248 and 387,811.50

Step by Step Solution

1. Step 1: Write the proportion equation
   250,248 : 387,811.50 = 387,811.50 : x
2. Step 2: Convert to fraction form
   250,248/387,811.50 = 387,811.50/x
3. Step 3: Cross multiply
   250,248x = 387,811.50 × 387,811.50
4. Step 4: Simplify right side
   250,248x = 150,397,759,532.25
5. Step 5: Solve for x
   x = 150,397,759,532.25/250,248
6. Step 6: Final answer
   x = 600,994.85