Finding the Third Proportional to 5,123 and 10,786

Step by Step Solution

1. Step 1: Write the proportion equation
   5,123 : 10,786 = 10,786 : x
2. Step 2: Convert to fraction form
   5,123/10,786 = 10,786/x
3. Step 3: Cross multiply
   5,123x = 10,786 × 10,786
4. Step 4: Simplify right side
   5,123x = 116,337,796
5. Step 5: Solve for x
   x = 116,337,796/5,123
6. Step 6: Final answer
   x = 22,708.92