Finding the Third Proportional to 225,564 and 495,780

Step by Step Solution

1. Step 1: Write the proportion equation
   225,564 : 495,780 = 495,780 : x
2. Step 2: Convert to fraction form
   225,564/495,780 = 495,780/x
3. Step 3: Cross multiply
   225,564x = 495,780 × 495,780
4. Step 4: Simplify right side
   225,564x = 245,797,808,400
5. Step 5: Solve for x
   x = 245,797,808,400/225,564
6. Step 6: Final answer
   x = 1,089,703.18