Finding the Third Proportional to 2,118.38 and 4,550.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118.38 : 4,550.63 = 4,550.63 : x
2. Step 2: Convert to fraction form
   2,118.38/4,550.63 = 4,550.63/x
3. Step 3: Cross multiply
   2,118.38x = 4,550.63 × 4,550.63
4. Step 4: Simplify right side
   2,118.38x = 20,708,187.89
5. Step 5: Solve for x
   x = 20,708,187.89/2,118.38
6. Step 6: Final answer
   x = 9,775.51