Finding the Third Proportional to 250,321 and 387,632

Step by Step Solution

1. Step 1: Write the proportion equation
   250,321 : 387,632 = 387,632 : x
2. Step 2: Convert to fraction form
   250,321/387,632 = 387,632/x
3. Step 3: Cross multiply
   250,321x = 387,632 × 387,632
4. Step 4: Simplify right side
   250,321x = 150,258,567,424
5. Step 5: Solve for x
   x = 150,258,567,424/250,321
6. Step 6: Final answer
   x = 600,263.53