Finding the Third Proportional to 338,413.50 and 722,494

Step by Step Solution

1. Step 1: Write the proportion equation
   338,413.50 : 722,494 = 722,494 : x
2. Step 2: Convert to fraction form
   338,413.50/722,494 = 722,494/x
3. Step 3: Cross multiply
   338,413.50x = 722,494 × 722,494
4. Step 4: Simplify right side
   338,413.50x = 521,997,580,036
5. Step 5: Solve for x
   x = 521,997,580,036/338,413.50
6. Step 6: Final answer
   x = 1,542,484.51