Finding the Third Proportional to 2,645.88 and 5,655.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645.88 : 5,655.88 = 5,655.88 : x
2. Step 2: Convert to fraction form
   2,645.88/5,655.88 = 5,655.88/x
3. Step 3: Cross multiply
   2,645.88x = 5,655.88 × 5,655.88
4. Step 4: Simplify right side
   2,645.88x = 31,988,922.02
5. Step 5: Solve for x
   x = 31,988,922.02/2,645.88
6. Step 6: Final answer
   x = 12,090.11