Finding the Third Proportional to 250,272 and 387,849

Step by Step Solution

1. Step 1: Write the proportion equation
   250,272 : 387,849 = 387,849 : x
2. Step 2: Convert to fraction form
   250,272/387,849 = 387,849/x
3. Step 3: Cross multiply
   250,272x = 387,849 × 387,849
4. Step 4: Simplify right side
   250,272x = 150,426,846,801
5. Step 5: Solve for x
   x = 150,426,846,801/250,272
6. Step 6: Final answer
   x = 601,053.44