Finding the Third Proportional to 557,608 and 1,187,142

Step by Step Solution

1. Step 1: Write the proportion equation
   557,608 : 1,187,142 = 1,187,142 : x
2. Step 2: Convert to fraction form
   557,608/1,187,142 = 1,187,142/x
3. Step 3: Cross multiply
   557,608x = 1,187,142 × 1,187,142
4. Step 4: Simplify right side
   557,608x = 1,409,306,128,164
5. Step 5: Solve for x
   x = 1,409,306,128,164/557,608
6. Step 6: Final answer
   x = 2,527,413.75