Finding the Third Proportional to 363,015 and 789,012

Step by Step Solution

1. Step 1: Write the proportion equation
   363,015 : 789,012 = 789,012 : x
2. Step 2: Convert to fraction form
   363,015/789,012 = 789,012/x
3. Step 3: Cross multiply
   363,015x = 789,012 × 789,012
4. Step 4: Simplify right side
   363,015x = 622,539,936,144
5. Step 5: Solve for x
   x = 622,539,936,144/363,015
6. Step 6: Final answer
   x = 1,714,915.19