Finding the Third Proportional to 6,923.81 and 10,979.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,923.81 : 10,979.72 = 10,979.72 : x
2. Step 2: Convert to fraction form
   6,923.81/10,979.72 = 10,979.72/x
3. Step 3: Cross multiply
   6,923.81x = 10,979.72 × 10,979.72
4. Step 4: Simplify right side
   6,923.81x = 120,554,223.83
5. Step 5: Solve for x
   x = 120,554,223.83/6,923.81
6. Step 6: Final answer
   x = 17,411.54