Finding the Third Proportional to 443,492 and 682,612

Step by Step Solution

1. Step 1: Write the proportion equation
   443,492 : 682,612 = 682,612 : x
2. Step 2: Convert to fraction form
   443,492/682,612 = 682,612/x
3. Step 3: Cross multiply
   443,492x = 682,612 × 682,612
4. Step 4: Simplify right side
   443,492x = 465,959,142,544
5. Step 5: Solve for x
   x = 465,959,142,544/443,492
6. Step 6: Final answer
   x = 1,050,659.63