Finding the Third Proportional to 12,928.50 and 27,919.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,928.50 : 27,919.50 = 27,919.50 : x
2. Step 2: Convert to fraction form
   12,928.50/27,919.50 = 27,919.50/x
3. Step 3: Cross multiply
   12,928.50x = 27,919.50 × 27,919.50
4. Step 4: Simplify right side
   12,928.50x = 779,498,480.25
5. Step 5: Solve for x
   x = 779,498,480.25/12,928.50
6. Step 6: Final answer
   x = 60,293.03