Finding the Third Proportional to 5,420.72 and 11,833.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,420.72 : 11,833.69 = 11,833.69 : x
2. Step 2: Convert to fraction form
   5,420.72/11,833.69 = 11,833.69/x
3. Step 3: Cross multiply
   5,420.72x = 11,833.69 × 11,833.69
4. Step 4: Simplify right side
   5,420.72x = 140,036,159.85
5. Step 5: Solve for x
   x = 140,036,159.85/5,420.72
6. Step 6: Final answer
   x = 25,833.50