Finding the Third Proportional to 6,909.38 and 10,808.63

Step by Step Solution

1. Step 1: Write the proportion equation
   6,909.38 : 10,808.63 = 10,808.63 : x
2. Step 2: Convert to fraction form
   6,909.38/10,808.63 = 10,808.63/x
3. Step 3: Cross multiply
   6,909.38x = 10,808.63 × 10,808.63
4. Step 4: Simplify right side
   6,909.38x = 116,826,374.39
5. Step 5: Solve for x
   x = 116,826,374.39/6,909.38
6. Step 6: Final answer
   x = 16,908.39