Finding the Third Proportional to 8,730.28 and 12,934.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,730.28 : 12,934.69 = 12,934.69 : x
2. Step 2: Convert to fraction form
   8,730.28/12,934.69 = 12,934.69/x
3. Step 3: Cross multiply
   8,730.28x = 12,934.69 × 12,934.69
4. Step 4: Simplify right side
   8,730.28x = 167,306,140.72
5. Step 5: Solve for x
   x = 167,306,140.72/8,730.28
6. Step 6: Final answer
   x = 19,163.89