Finding the Third Proportional to 279,075 and 605,413.50

Step by Step Solution

1. Step 1: Write the proportion equation
   279,075 : 605,413.50 = 605,413.50 : x
2. Step 2: Convert to fraction form
   279,075/605,413.50 = 605,413.50/x
3. Step 3: Cross multiply
   279,075x = 605,413.50 × 605,413.50
4. Step 4: Simplify right side
   279,075x = 366,525,505,982.25
5. Step 5: Solve for x
   x = 366,525,505,982.25/279,075
6. Step 6: Final answer
   x = 1,313,358.44