Finding the Third Proportional to 5,371.88 and 8,300.81

Step by Step Solution

1. Step 1: Write the proportion equation
   5,371.88 : 8,300.81 = 8,300.81 : x
2. Step 2: Convert to fraction form
   5,371.88/8,300.81 = 8,300.81/x
3. Step 3: Cross multiply
   5,371.88x = 8,300.81 × 8,300.81
4. Step 4: Simplify right side
   5,371.88x = 68,903,488.16
5. Step 5: Solve for x
   x = 68,903,488.16/5,371.88
6. Step 6: Final answer
   x = 12,826.71