Finding the Third Proportional to 5,208.19 and 8,066.81

Step by Step Solution

1. Step 1: Write the proportion equation
   5,208.19 : 8,066.81 = 8,066.81 : x
2. Step 2: Convert to fraction form
   5,208.19/8,066.81 = 8,066.81/x
3. Step 3: Cross multiply
   5,208.19x = 8,066.81 × 8,066.81
4. Step 4: Simplify right side
   5,208.19x = 65,073,463.91
5. Step 5: Solve for x
   x = 65,073,463.91/5,208.19
6. Step 6: Final answer
   x = 12,494.45