Finding the Third Proportional to 363,908 and 789,976

Step by Step Solution

1. Step 1: Write the proportion equation
   363,908 : 789,976 = 789,976 : x
2. Step 2: Convert to fraction form
   363,908/789,976 = 789,976/x
3. Step 3: Cross multiply
   363,908x = 789,976 × 789,976
4. Step 4: Simplify right side
   363,908x = 624,062,080,576
5. Step 5: Solve for x
   x = 624,062,080,576/363,908
6. Step 6: Final answer
   x = 1,714,889.70