Finding the Third Proportional to 225,518 and 495,676

Step by Step Solution

1. Step 1: Write the proportion equation
   225,518 : 495,676 = 495,676 : x
2. Step 2: Convert to fraction form
   225,518/495,676 = 495,676/x
3. Step 3: Cross multiply
   225,518x = 495,676 × 495,676
4. Step 4: Simplify right side
   225,518x = 245,694,696,976
5. Step 5: Solve for x
   x = 245,694,696,976/225,518
6. Step 6: Final answer
   x = 1,089,468.23