Finding the Third Proportional to 3,086.86 and 3,679.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,086.86 : 3,679.17 = 3,679.17 : x
2. Step 2: Convert to fraction form
   3,086.86/3,679.17 = 3,679.17/x
3. Step 3: Cross multiply
   3,086.86x = 3,679.17 × 3,679.17
4. Step 4: Simplify right side
   3,086.86x = 13,536,305.69
5. Step 5: Solve for x
   x = 13,536,305.69/3,086.86
6. Step 6: Final answer
   x = 4,385.14