Finding the Third Proportional to 542,482 and 789,099

Step by Step Solution

1. Step 1: Write the proportion equation
   542,482 : 789,099 = 789,099 : x
2. Step 2: Convert to fraction form
   542,482/789,099 = 789,099/x
3. Step 3: Cross multiply
   542,482x = 789,099 × 789,099
4. Step 4: Simplify right side
   542,482x = 622,677,231,801
5. Step 5: Solve for x
   x = 622,677,231,801/542,482
6. Step 6: Final answer
   x = 1,147,830.22