Finding the Third Proportional to 5,521.92 and 7,800.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,521.92 : 7,800.05 = 7,800.05 : x
2. Step 2: Convert to fraction form
   5,521.92/7,800.05 = 7,800.05/x
3. Step 3: Cross multiply
   5,521.92x = 7,800.05 × 7,800.05
4. Step 4: Simplify right side
   5,521.92x = 60,840,731.25
5. Step 5: Solve for x
   x = 60,840,731.25/5,521.92
6. Step 6: Final answer
   x = 11,018.04