Finding the Third Proportional to 12,040 and 17,956.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,040 : 17,956.50 = 17,956.50 : x
2. Step 2: Convert to fraction form
   12,040/17,956.50 = 17,956.50/x
3. Step 3: Cross multiply
   12,040x = 17,956.50 × 17,956.50
4. Step 4: Simplify right side
   12,040x = 322,435,892.25
5. Step 5: Solve for x
   x = 322,435,892.25/12,040
6. Step 6: Final answer
   x = 26,780.39