Finding the Third Proportional to 11,746.69 and 18,216.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,746.69 : 18,216.56 = 18,216.56 : x
2. Step 2: Convert to fraction form
   11,746.69/18,216.56 = 18,216.56/x
3. Step 3: Cross multiply
   11,746.69x = 18,216.56 × 18,216.56
4. Step 4: Simplify right side
   11,746.69x = 331,843,149.32
5. Step 5: Solve for x
   x = 331,843,149.32/11,746.69
6. Step 6: Final answer
   x = 28,249.93