Finding the Third Proportional to 859.50 and 1,759.50

Step by Step Solution

1. Step 1: Write the proportion equation
   859.50 : 1,759.50 = 1,759.50 : x
2. Step 2: Convert to fraction form
   859.50/1,759.50 = 1,759.50/x
3. Step 3: Cross multiply
   859.50x = 1,759.50 × 1,759.50
4. Step 4: Simplify right side
   859.50x = 3,095,840.25
5. Step 5: Solve for x
   x = 3,095,840.25/859.50
6. Step 6: Final answer
   x = 3,601.91