Finding the Third Proportional to 5,087.81 and 8,411.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,087.81 : 8,411.34 = 8,411.34 : x
2. Step 2: Convert to fraction form
   5,087.81/8,411.34 = 8,411.34/x
3. Step 3: Cross multiply
   5,087.81x = 8,411.34 × 8,411.34
4. Step 4: Simplify right side
   5,087.81x = 70,750,703.68
5. Step 5: Solve for x
   x = 70,750,703.68/5,087.81
6. Step 6: Final answer
   x = 13,905.92