Finding the Third Proportional to 250,660 and 521,974

Step by Step Solution

1. Step 1: Write the proportion equation
   250,660 : 521,974 = 521,974 : x
2. Step 2: Convert to fraction form
   250,660/521,974 = 521,974/x
3. Step 3: Cross multiply
   250,660x = 521,974 × 521,974
4. Step 4: Simplify right side
   250,660x = 272,456,856,676
5. Step 5: Solve for x
   x = 272,456,856,676/250,660
6. Step 6: Final answer
   x = 1,086,957.86