Finding the Third Proportional to 2,839.27 and 5,820.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,839.27 : 5,820.21 = 5,820.21 : x
2. Step 2: Convert to fraction form
   2,839.27/5,820.21 = 5,820.21/x
3. Step 3: Cross multiply
   2,839.27x = 5,820.21 × 5,820.21
4. Step 4: Simplify right side
   2,839.27x = 33,874,889.46
5. Step 5: Solve for x
   x = 33,874,889.46/2,839.27
6. Step 6: Final answer
   x = 11,930.84