Finding the Third Proportional to 6,979.61 and 10,969.17

Step by Step Solution

1. Step 1: Write the proportion equation
   6,979.61 : 10,969.17 = 10,969.17 : x
2. Step 2: Convert to fraction form
   6,979.61/10,969.17 = 10,969.17/x
3. Step 3: Cross multiply
   6,979.61x = 10,969.17 × 10,969.17
4. Step 4: Simplify right side
   6,979.61x = 120,322,731.62
5. Step 5: Solve for x
   x = 120,322,731.62/6,979.61
6. Step 6: Final answer
   x = 17,239.19