Finding the Third Proportional to 8,759.39 and 12,860.02

Step by Step Solution

1. Step 1: Write the proportion equation
   8,759.39 : 12,860.02 = 12,860.02 : x
2. Step 2: Convert to fraction form
   8,759.39/12,860.02 = 12,860.02/x
3. Step 3: Cross multiply
   8,759.39x = 12,860.02 × 12,860.02
4. Step 4: Simplify right side
   8,759.39x = 165,380,001.88
5. Step 5: Solve for x
   x = 165,380,001.88/8,759.39
6. Step 6: Final answer
   x = 18,880.31