Finding the Third Proportional to 217,448 and 479,044

Step by Step Solution

1. Step 1: Write the proportion equation
   217,448 : 479,044 = 479,044 : x
2. Step 2: Convert to fraction form
   217,448/479,044 = 479,044/x
3. Step 3: Cross multiply
   217,448x = 479,044 × 479,044
4. Step 4: Simplify right side
   217,448x = 229,483,153,936
5. Step 5: Solve for x
   x = 229,483,153,936/217,448
6. Step 6: Final answer
   x = 1,055,347.27