Finding the Third Proportional to 6,879 and 10,272

Step by Step Solution

1. Step 1: Write the proportion equation
   6,879 : 10,272 = 10,272 : x
2. Step 2: Convert to fraction form
   6,879/10,272 = 10,272/x
3. Step 3: Cross multiply
   6,879x = 10,272 × 10,272
4. Step 4: Simplify right side
   6,879x = 105,513,984
5. Step 5: Solve for x
   x = 105,513,984/6,879
6. Step 6: Final answer
   x = 15,338.56