Finding the Third Proportional to 11,859.75 and 19,018.13

Step by Step Solution

1. Step 1: Write the proportion equation
   11,859.75 : 19,018.13 = 19,018.13 : x
2. Step 2: Convert to fraction form
   11,859.75/19,018.13 = 19,018.13/x
3. Step 3: Cross multiply
   11,859.75x = 19,018.13 × 19,018.13
4. Step 4: Simplify right side
   11,859.75x = 361,689,078.52
5. Step 5: Solve for x
   x = 361,689,078.52/11,859.75
6. Step 6: Final answer
   x = 30,497.19