Finding the Third Proportional to 225,508 and 495,656

Step by Step Solution

1. Step 1: Write the proportion equation
   225,508 : 495,656 = 495,656 : x
2. Step 2: Convert to fraction form
   225,508/495,656 = 495,656/x
3. Step 3: Cross multiply
   225,508x = 495,656 × 495,656
4. Step 4: Simplify right side
   225,508x = 245,674,870,336
5. Step 5: Solve for x
   x = 245,674,870,336/225,508
6. Step 6: Final answer
   x = 1,089,428.62