Finding the Third Proportional to 12,126 and 18,204.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,126 : 18,204.56 = 18,204.56 : x
2. Step 2: Convert to fraction form
   12,126/18,204.56 = 18,204.56/x
3. Step 3: Cross multiply
   12,126x = 18,204.56 × 18,204.56
4. Step 4: Simplify right side
   12,126x = 331,406,095.82
5. Step 5: Solve for x
   x = 331,406,095.82/12,126
6. Step 6: Final answer
   x = 27,330.21