Finding the Third Proportional to 12,679 and 20,152

Step by Step Solution

1. Step 1: Write the proportion equation
   12,679 : 20,152 = 20,152 : x
2. Step 2: Convert to fraction form
   12,679/20,152 = 20,152/x
3. Step 3: Cross multiply
   12,679x = 20,152 × 20,152
4. Step 4: Simplify right side
   12,679x = 406,103,104
5. Step 5: Solve for x
   x = 406,103,104/12,679
6. Step 6: Final answer
   x = 32,029.58