Finding the Third Proportional to 221,488 and 474,446

Step by Step Solution

1. Step 1: Write the proportion equation
   221,488 : 474,446 = 474,446 : x
2. Step 2: Convert to fraction form
   221,488/474,446 = 474,446/x
3. Step 3: Cross multiply
   221,488x = 474,446 × 474,446
4. Step 4: Simplify right side
   221,488x = 225,099,006,916
5. Step 5: Solve for x
   x = 225,099,006,916/221,488
6. Step 6: Final answer
   x = 1,016,303.40