Finding the Third Proportional to 311,044.50 and 682,353

Step by Step Solution

1. Step 1: Write the proportion equation
   311,044.50 : 682,353 = 682,353 : x
2. Step 2: Convert to fraction form
   311,044.50/682,353 = 682,353/x
3. Step 3: Cross multiply
   311,044.50x = 682,353 × 682,353
4. Step 4: Simplify right side
   311,044.50x = 465,605,616,609
5. Step 5: Solve for x
   x = 465,605,616,609/311,044.50
6. Step 6: Final answer
   x = 1,496,909.98