Finding the Third Proportional to 12,170 and 16,956

Step by Step Solution

1. Step 1: Write the proportion equation
   12,170 : 16,956 = 16,956 : x
2. Step 2: Convert to fraction form
   12,170/16,956 = 16,956/x
3. Step 3: Cross multiply
   12,170x = 16,956 × 16,956
4. Step 4: Simplify right side
   12,170x = 287,505,936
5. Step 5: Solve for x
   x = 287,505,936/12,170
6. Step 6: Final answer
   x = 23,624.15