Finding the Third Proportional to 322,839 and 750,217.50

Step by Step Solution

1. Step 1: Write the proportion equation
   322,839 : 750,217.50 = 750,217.50 : x
2. Step 2: Convert to fraction form
   322,839/750,217.50 = 750,217.50/x
3. Step 3: Cross multiply
   322,839x = 750,217.50 × 750,217.50
4. Step 4: Simplify right side
   322,839x = 562,826,297,306.25
5. Step 5: Solve for x
   x = 562,826,297,306.25/322,839
6. Step 6: Final answer
   x = 1,743,365.26