Finding the Third Proportional to 216,442 and 474,396

Step by Step Solution

1. Step 1: Write the proportion equation
   216,442 : 474,396 = 474,396 : x
2. Step 2: Convert to fraction form
   216,442/474,396 = 474,396/x
3. Step 3: Cross multiply
   216,442x = 474,396 × 474,396
4. Step 4: Simplify right side
   216,442x = 225,051,564,816
5. Step 5: Solve for x
   x = 225,051,564,816/216,442
6. Step 6: Final answer
   x = 1,039,777.70