Finding the Third Proportional to 5,020.31 and 7,799.06

Step by Step Solution

1. Step 1: Write the proportion equation
   5,020.31 : 7,799.06 = 7,799.06 : x
2. Step 2: Convert to fraction form
   5,020.31/7,799.06 = 7,799.06/x
3. Step 3: Cross multiply
   5,020.31x = 7,799.06 × 7,799.06
4. Step 4: Simplify right side
   5,020.31x = 60,825,375.88
5. Step 5: Solve for x
   x = 60,825,375.88/5,020.31
6. Step 6: Final answer
   x = 12,115.85