Finding the Third Proportional to 5,981.91 and 8,757.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,981.91 : 8,757.56 = 8,757.56 : x
2. Step 2: Convert to fraction form
   5,981.91/8,757.56 = 8,757.56/x
3. Step 3: Cross multiply
   5,981.91x = 8,757.56 × 8,757.56
4. Step 4: Simplify right side
   5,981.91x = 76,694,900.94
5. Step 5: Solve for x
   x = 76,694,900.94/5,981.91
6. Step 6: Final answer
   x = 12,821.15