Finding the Third Proportional to 787,728 and 1,718,040

Step by Step Solution

1. Step 1: Write the proportion equation
   787,728 : 1,718,040 = 1,718,040 : x
2. Step 2: Convert to fraction form
   787,728/1,718,040 = 1,718,040/x
3. Step 3: Cross multiply
   787,728x = 1,718,040 × 1,718,040
4. Step 4: Simplify right side
   787,728x = 2,951,661,441,600
5. Step 5: Solve for x
   x = 2,951,661,441,600/787,728
6. Step 6: Final answer
   x = 3,747,056.65