Finding the Third Proportional to 250,334 and 387,870

Step by Step Solution

1. Step 1: Write the proportion equation
   250,334 : 387,870 = 387,870 : x
2. Step 2: Convert to fraction form
   250,334/387,870 = 387,870/x
3. Step 3: Cross multiply
   250,334x = 387,870 × 387,870
4. Step 4: Simplify right side
   250,334x = 150,443,136,900
5. Step 5: Solve for x
   x = 150,443,136,900/250,334
6. Step 6: Final answer
   x = 600,969.65