Finding the Third Proportional to 2,155.36 and 2,806.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.36 : 2,806.52 = 2,806.52 : x
2. Step 2: Convert to fraction form
   2,155.36/2,806.52 = 2,806.52/x
3. Step 3: Cross multiply
   2,155.36x = 2,806.52 × 2,806.52
4. Step 4: Simplify right side
   2,155.36x = 7,876,573.81
5. Step 5: Solve for x
   x = 7,876,573.81/2,155.36
6. Step 6: Final answer
   x = 3,654.41