Finding the Third Proportional to 2,308.19 and 3,580.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.19 : 3,580.81 = 3,580.81 : x
2. Step 2: Convert to fraction form
   2,308.19/3,580.81 = 3,580.81/x
3. Step 3: Cross multiply
   2,308.19x = 3,580.81 × 3,580.81
4. Step 4: Simplify right side
   2,308.19x = 12,822,218.16
5. Step 5: Solve for x
   x = 12,822,218.16/2,308.19
6. Step 6: Final answer
   x = 5,555.10