Finding the Third Proportional to 1,113.56 and 2,405.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,113.56 : 2,405.56 = 2,405.56 : x
2. Step 2: Convert to fraction form
   1,113.56/2,405.56 = 2,405.56/x
3. Step 3: Cross multiply
   1,113.56x = 2,405.56 × 2,405.56
4. Step 4: Simplify right side
   1,113.56x = 5,786,730.94
5. Step 5: Solve for x
   x = 5,786,730.94/1,113.56
6. Step 6: Final answer
   x = 5,196.59