Finding the Third Proportional to 217,120 and 471,370

Step by Step Solution

1. Step 1: Write the proportion equation
   217,120 : 471,370 = 471,370 : x
2. Step 2: Convert to fraction form
   217,120/471,370 = 471,370/x
3. Step 3: Cross multiply
   217,120x = 471,370 × 471,370
4. Step 4: Simplify right side
   217,120x = 222,189,676,900
5. Step 5: Solve for x
   x = 222,189,676,900/217,120
6. Step 6: Final answer
   x = 1,023,349.65