Finding the Third Proportional to 222,912 and 495,540

Step by Step Solution

1. Step 1: Write the proportion equation
   222,912 : 495,540 = 495,540 : x
2. Step 2: Convert to fraction form
   222,912/495,540 = 495,540/x
3. Step 3: Cross multiply
   222,912x = 495,540 × 495,540
4. Step 4: Simplify right side
   222,912x = 245,559,891,600
5. Step 5: Solve for x
   x = 245,559,891,600/222,912
6. Step 6: Final answer
   x = 1,101,600.15