Finding the Third Proportional to 363,728 and 789,662

Step by Step Solution

1. Step 1: Write the proportion equation
   363,728 : 789,662 = 789,662 : x
2. Step 2: Convert to fraction form
   363,728/789,662 = 789,662/x
3. Step 3: Cross multiply
   363,728x = 789,662 × 789,662
4. Step 4: Simplify right side
   363,728x = 623,566,074,244
5. Step 5: Solve for x
   x = 623,566,074,244/363,728
6. Step 6: Final answer
   x = 1,714,374.68