Finding the Third Proportional to 328,423.50 and 707,492

Step by Step Solution

1. Step 1: Write the proportion equation
   328,423.50 : 707,492 = 707,492 : x
2. Step 2: Convert to fraction form
   328,423.50/707,492 = 707,492/x
3. Step 3: Cross multiply
   328,423.50x = 707,492 × 707,492
4. Step 4: Simplify right side
   328,423.50x = 500,544,930,064
5. Step 5: Solve for x
   x = 500,544,930,064/328,423.50
6. Step 6: Final answer
   x = 1,524,083.78