Finding the Third Proportional to 217,116 and 471,402

Step by Step Solution

1. Step 1: Write the proportion equation
   217,116 : 471,402 = 471,402 : x
2. Step 2: Convert to fraction form
   217,116/471,402 = 471,402/x
3. Step 3: Cross multiply
   217,116x = 471,402 × 471,402
4. Step 4: Simplify right side
   217,116x = 222,219,845,604
5. Step 5: Solve for x
   x = 222,219,845,604/217,116
6. Step 6: Final answer
   x = 1,023,507.46