Finding the Third Proportional to 217,488 and 476,448

Step by Step Solution

1. Step 1: Write the proportion equation
   217,488 : 476,448 = 476,448 : x
2. Step 2: Convert to fraction form
   217,488/476,448 = 476,448/x
3. Step 3: Cross multiply
   217,488x = 476,448 × 476,448
4. Step 4: Simplify right side
   217,488x = 227,002,696,704
5. Step 5: Solve for x
   x = 227,002,696,704/217,488
6. Step 6: Final answer
   x = 1,043,748.15