Finding the Third Proportional to 11,172.94 and 16,718.91

Step by Step Solution

1. Step 1: Write the proportion equation
   11,172.94 : 16,718.91 = 16,718.91 : x
2. Step 2: Convert to fraction form
   11,172.94/16,718.91 = 16,718.91/x
3. Step 3: Cross multiply
   11,172.94x = 16,718.91 × 16,718.91
4. Step 4: Simplify right side
   11,172.94x = 279,521,826.20
5. Step 5: Solve for x
   x = 279,521,826.20/11,172.94
6. Step 6: Final answer
   x = 25,017.76