Finding the Third Proportional to 217,204 and 471,528

Step by Step Solution

1. Step 1: Write the proportion equation
   217,204 : 471,528 = 471,528 : x
2. Step 2: Convert to fraction form
   217,204/471,528 = 471,528/x
3. Step 3: Cross multiply
   217,204x = 471,528 × 471,528
4. Step 4: Simplify right side
   217,204x = 222,338,654,784
5. Step 5: Solve for x
   x = 222,338,654,784/217,204
6. Step 6: Final answer
   x = 1,023,639.78