Finding the Third Proportional to 561,042 and 789,147

Step by Step Solution

1. Step 1: Write the proportion equation
   561,042 : 789,147 = 789,147 : x
2. Step 2: Convert to fraction form
   561,042/789,147 = 789,147/x
3. Step 3: Cross multiply
   561,042x = 789,147 × 789,147
4. Step 4: Simplify right side
   561,042x = 622,752,987,609
5. Step 5: Solve for x
   x = 622,752,987,609/561,042
6. Step 6: Final answer
   x = 1,109,993.53