Finding the Third Proportional to 2,593.55 and 5,556.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,593.55 : 5,556.90 = 5,556.90 : x
2. Step 2: Convert to fraction form
   2,593.55/5,556.90 = 5,556.90/x
3. Step 3: Cross multiply
   2,593.55x = 5,556.90 × 5,556.90
4. Step 4: Simplify right side
   2,593.55x = 30,879,163.66
5. Step 5: Solve for x
   x = 30,879,163.66/2,593.55
6. Step 6: Final answer
   x = 11,906.15