Finding the Third Proportional to 343,131 and 495,012

Step by Step Solution

1. Step 1: Write the proportion equation
   343,131 : 495,012 = 495,012 : x
2. Step 2: Convert to fraction form
   343,131/495,012 = 495,012/x
3. Step 3: Cross multiply
   343,131x = 495,012 × 495,012
4. Step 4: Simplify right side
   343,131x = 245,036,880,144
5. Step 5: Solve for x
   x = 245,036,880,144/343,131
6. Step 6: Final answer
   x = 714,120.50