Finding the Third Proportional to 359,728 and 787,980

Step by Step Solution

1. Step 1: Write the proportion equation
   359,728 : 787,980 = 787,980 : x
2. Step 2: Convert to fraction form
   359,728/787,980 = 787,980/x
3. Step 3: Cross multiply
   359,728x = 787,980 × 787,980
4. Step 4: Simplify right side
   359,728x = 620,912,480,400
5. Step 5: Solve for x
   x = 620,912,480,400/359,728
6. Step 6: Final answer
   x = 1,726,061.02