Finding the Third Proportional to 6,940.69 and 14,359.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,940.69 : 14,359.78 = 14,359.78 : x
2. Step 2: Convert to fraction form
   6,940.69/14,359.78 = 14,359.78/x
3. Step 3: Cross multiply
   6,940.69x = 14,359.78 × 14,359.78
4. Step 4: Simplify right side
   6,940.69x = 206,203,317.55
5. Step 5: Solve for x
   x = 206,203,317.55/6,940.69
6. Step 6: Final answer
   x = 29,709.35