Finding the Third Proportional to 7,879.50 and 10,513.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,879.50 : 10,513.69 = 10,513.69 : x
2. Step 2: Convert to fraction form
   7,879.50/10,513.69 = 10,513.69/x
3. Step 3: Cross multiply
   7,879.50x = 10,513.69 × 10,513.69
4. Step 4: Simplify right side
   7,879.50x = 110,537,624.85
5. Step 5: Solve for x
   x = 110,537,624.85/7,879.50
6. Step 6: Final answer
   x = 14,028.51