Finding the Third Proportional to 218,366 and 477,466

Step by Step Solution

1. Step 1: Write the proportion equation
   218,366 : 477,466 = 477,466 : x
2. Step 2: Convert to fraction form
   218,366/477,466 = 477,466/x
3. Step 3: Cross multiply
   218,366x = 477,466 × 477,466
4. Step 4: Simplify right side
   218,366x = 227,973,781,156
5. Step 5: Solve for x
   x = 227,973,781,156/218,366
6. Step 6: Final answer
   x = 1,043,998.52