Finding the Third Proportional to 220,748 and 479,906

Step by Step Solution

1. Step 1: Write the proportion equation
   220,748 : 479,906 = 479,906 : x
2. Step 2: Convert to fraction form
   220,748/479,906 = 479,906/x
3. Step 3: Cross multiply
   220,748x = 479,906 × 479,906
4. Step 4: Simplify right side
   220,748x = 230,309,768,836
5. Step 5: Solve for x
   x = 230,309,768,836/220,748
6. Step 6: Final answer
   x = 1,043,315.31