Finding the Third Proportional to 11,818.50 and 19,040.75

Step by Step Solution

1. Step 1: Write the proportion equation
   11,818.50 : 19,040.75 = 19,040.75 : x
2. Step 2: Convert to fraction form
   11,818.50/19,040.75 = 19,040.75/x
3. Step 3: Cross multiply
   11,818.50x = 19,040.75 × 19,040.75
4. Step 4: Simplify right side
   11,818.50x = 362,550,160.56
5. Step 5: Solve for x
   x = 362,550,160.56/11,818.50
6. Step 6: Final answer
   x = 30,676.50