Finding the Third Proportional to 6,902.72 and 10,712.88

Step by Step Solution

1. Step 1: Write the proportion equation
   6,902.72 : 10,712.88 = 10,712.88 : x
2. Step 2: Convert to fraction form
   6,902.72/10,712.88 = 10,712.88/x
3. Step 3: Cross multiply
   6,902.72x = 10,712.88 × 10,712.88
4. Step 4: Simplify right side
   6,902.72x = 114,765,858.15
5. Step 5: Solve for x
   x = 114,765,858.15/6,902.72
6. Step 6: Final answer
   x = 16,626.18