Finding the Third Proportional to 491,413.50 and 740,578.50

Step by Step Solution

1. Step 1: Write the proportion equation
   491,413.50 : 740,578.50 = 740,578.50 : x
2. Step 2: Convert to fraction form
   491,413.50/740,578.50 = 740,578.50/x
3. Step 3: Cross multiply
   491,413.50x = 740,578.50 × 740,578.50
4. Step 4: Simplify right side
   491,413.50x = 548,456,514,662.25
5. Step 5: Solve for x
   x = 548,456,514,662.25/491,413.50
6. Step 6: Final answer
   x = 1,116,079.46