Finding the Third Proportional to 2,447.50 and 5,455.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,447.50 : 5,455.25 = 5,455.25 : x
2. Step 2: Convert to fraction form
   2,447.50/5,455.25 = 5,455.25/x
3. Step 3: Cross multiply
   2,447.50x = 5,455.25 × 5,455.25
4. Step 4: Simplify right side
   2,447.50x = 29,759,752.56
5. Step 5: Solve for x
   x = 29,759,752.56/2,447.50
6. Step 6: Final answer
   x = 12,159.25