Finding the Third Proportional to 366,109.88 and 788,413.50

Step by Step Solution

1. Step 1: Write the proportion equation
   366,109.88 : 788,413.50 = 788,413.50 : x
2. Step 2: Convert to fraction form
   366,109.88/788,413.50 = 788,413.50/x
3. Step 3: Cross multiply
   366,109.88x = 788,413.50 × 788,413.50
4. Step 4: Simplify right side
   366,109.88x = 621,595,846,982.25
5. Step 5: Solve for x
   x = 621,595,846,982.25/366,109.88
6. Step 6: Final answer
   x = 1,697,839.61