Finding the Third Proportional to 218,370 and 477,474

Step by Step Solution

1. Step 1: Write the proportion equation
   218,370 : 477,474 = 477,474 : x
2. Step 2: Convert to fraction form
   218,370/477,474 = 477,474/x
3. Step 3: Cross multiply
   218,370x = 477,474 × 477,474
4. Step 4: Simplify right side
   218,370x = 227,981,420,676
5. Step 5: Solve for x
   x = 227,981,420,676/218,370
6. Step 6: Final answer
   x = 1,044,014.38