Finding the Third Proportional to 12,122.16 and 18,108.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,122.16 : 18,108.56 = 18,108.56 : x
2. Step 2: Convert to fraction form
   12,122.16/18,108.56 = 18,108.56/x
3. Step 3: Cross multiply
   12,122.16x = 18,108.56 × 18,108.56
4. Step 4: Simplify right side
   12,122.16x = 327,920,035.82
5. Step 5: Solve for x
   x = 327,920,035.82/12,122.16
6. Step 6: Final answer
   x = 27,051.30