Finding the Third Proportional to 3,612.09 and 5,591.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,612.09 : 5,591.53 = 5,591.53 : x
2. Step 2: Convert to fraction form
   3,612.09/5,591.53 = 5,591.53/x
3. Step 3: Cross multiply
   3,612.09x = 5,591.53 × 5,591.53
4. Step 4: Simplify right side
   3,612.09x = 31,265,221.72
5. Step 5: Solve for x
   x = 31,265,221.72/3,612.09
6. Step 6: Final answer
   x = 8,655.71