Finding the Third Proportional to 2,120.77 and 3,238.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,120.77 : 3,238.31 = 3,238.31 : x
2. Step 2: Convert to fraction form
   2,120.77/3,238.31 = 3,238.31/x
3. Step 3: Cross multiply
   2,120.77x = 3,238.31 × 3,238.31
4. Step 4: Simplify right side
   2,120.77x = 10,486,667.85
5. Step 5: Solve for x
   x = 10,486,667.85/2,120.77
6. Step 6: Final answer
   x = 4,944.76