Finding the Third Proportional to 8,412 and 13,164

Step by Step Solution

1. Step 1: Write the proportion equation
   8,412 : 13,164 = 13,164 : x
2. Step 2: Convert to fraction form
   8,412/13,164 = 13,164/x
3. Step 3: Cross multiply
   8,412x = 13,164 × 13,164
4. Step 4: Simplify right side
   8,412x = 173,290,896
5. Step 5: Solve for x
   x = 173,290,896/8,412
6. Step 6: Final answer
   x = 20,600.44