Finding the Third Proportional to 217,838 and 471,862

Step by Step Solution

1. Step 1: Write the proportion equation
   217,838 : 471,862 = 471,862 : x
2. Step 2: Convert to fraction form
   217,838/471,862 = 471,862/x
3. Step 3: Cross multiply
   217,838x = 471,862 × 471,862
4. Step 4: Simplify right side
   217,838x = 222,653,747,044
5. Step 5: Solve for x
   x = 222,653,747,044/217,838
6. Step 6: Final answer
   x = 1,022,107.01