Finding the Third Proportional to 250,245 and 387,810

Step by Step Solution

1. Step 1: Write the proportion equation
   250,245 : 387,810 = 387,810 : x
2. Step 2: Convert to fraction form
   250,245/387,810 = 387,810/x
3. Step 3: Cross multiply
   250,245x = 387,810 × 387,810
4. Step 4: Simplify right side
   250,245x = 150,396,596,100
5. Step 5: Solve for x
   x = 150,396,596,100/250,245
6. Step 6: Final answer
   x = 600,997.41