Finding the Third Proportional to 217,118 and 471,372

Step by Step Solution

1. Step 1: Write the proportion equation
   217,118 : 471,372 = 471,372 : x
2. Step 2: Convert to fraction form
   217,118/471,372 = 471,372/x
3. Step 3: Cross multiply
   217,118x = 471,372 × 471,372
4. Step 4: Simplify right side
   217,118x = 222,191,562,384
5. Step 5: Solve for x
   x = 222,191,562,384/217,118
6. Step 6: Final answer
   x = 1,023,367.76