Finding the Third Proportional to 6,940.69 and 10,919.81

Step by Step Solution

1. Step 1: Write the proportion equation
   6,940.69 : 10,919.81 = 10,919.81 : x
2. Step 2: Convert to fraction form
   6,940.69/10,919.81 = 10,919.81/x
3. Step 3: Cross multiply
   6,940.69x = 10,919.81 × 10,919.81
4. Step 4: Simplify right side
   6,940.69x = 119,242,305.04
5. Step 5: Solve for x
   x = 119,242,305.04/6,940.69
6. Step 6: Final answer
   x = 17,180.19