Finding the Third Proportional to 2,403 and 5,560.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,403 : 5,560.31 = 5,560.31 : x
2. Step 2: Convert to fraction form
   2,403/5,560.31 = 5,560.31/x
3. Step 3: Cross multiply
   2,403x = 5,560.31 × 5,560.31
4. Step 4: Simplify right side
   2,403x = 30,917,075.10
5. Step 5: Solve for x
   x = 30,917,075.10/2,403
6. Step 6: Final answer
   x = 12,866.03