Finding the Third Proportional to 3,645.94 and 5,656.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,645.94 : 5,656.31 = 5,656.31 : x
2. Step 2: Convert to fraction form
   3,645.94/5,656.31 = 5,656.31/x
3. Step 3: Cross multiply
   3,645.94x = 5,656.31 × 5,656.31
4. Step 4: Simplify right side
   3,645.94x = 31,993,871.10
5. Step 5: Solve for x
   x = 31,993,871.10/3,645.94
6. Step 6: Final answer
   x = 8,775.21