Finding the Third Proportional to 2,628.56 and 3,920.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,628.56 : 3,920.06 = 3,920.06 : x
2. Step 2: Convert to fraction form
   2,628.56/3,920.06 = 3,920.06/x
3. Step 3: Cross multiply
   2,628.56x = 3,920.06 × 3,920.06
4. Step 4: Simplify right side
   2,628.56x = 15,366,890.00
5. Step 5: Solve for x
   x = 15,366,890.00/2,628.56
6. Step 6: Final answer
   x = 5,846.12