Finding the Third Proportional to 2,421.77 and 5,230.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,421.77 : 5,230.83 = 5,230.83 : x
2. Step 2: Convert to fraction form
   2,421.77/5,230.83 = 5,230.83/x
3. Step 3: Cross multiply
   2,421.77x = 5,230.83 × 5,230.83
4. Step 4: Simplify right side
   2,421.77x = 27,361,562.87
5. Step 5: Solve for x
   x = 27,361,562.87/2,421.77
6. Step 6: Final answer
   x = 11,298.15