Finding the Third Proportional to 2,494.55 and 5,510.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,494.55 : 5,510.21 = 5,510.21 : x
2. Step 2: Convert to fraction form
   2,494.55/5,510.21 = 5,510.21/x
3. Step 3: Cross multiply
   2,494.55x = 5,510.21 × 5,510.21
4. Step 4: Simplify right side
   2,494.55x = 30,362,467.62
5. Step 5: Solve for x
   x = 30,362,467.62/2,494.55
6. Step 6: Final answer
   x = 12,171.54