Finding the Third Proportional to 11,870 and 17,831

Step by Step Solution

1. Step 1: Write the proportion equation
   11,870 : 17,831 = 17,831 : x
2. Step 2: Convert to fraction form
   11,870/17,831 = 17,831/x
3. Step 3: Cross multiply
   11,870x = 17,831 × 17,831
4. Step 4: Simplify right side
   11,870x = 317,944,561
5. Step 5: Solve for x
   x = 317,944,561/11,870
6. Step 6: Final answer
   x = 26,785.56