Finding the Third Proportional to 217,484 and 477,736

Step by Step Solution

1. Step 1: Write the proportion equation
   217,484 : 477,736 = 477,736 : x
2. Step 2: Convert to fraction form
   217,484/477,736 = 477,736/x
3. Step 3: Cross multiply
   217,484x = 477,736 × 477,736
4. Step 4: Simplify right side
   217,484x = 228,231,685,696
5. Step 5: Solve for x
   x = 228,231,685,696/217,484
6. Step 6: Final answer
   x = 1,049,418.28