Finding the Third Proportional to 10,186 and 21,908

Step by Step Solution

1. Step 1: Write the proportion equation
   10,186 : 21,908 = 21,908 : x
2. Step 2: Convert to fraction form
   10,186/21,908 = 21,908/x
3. Step 3: Cross multiply
   10,186x = 21,908 × 21,908
4. Step 4: Simplify right side
   10,186x = 479,960,464
5. Step 5: Solve for x
   x = 479,960,464/10,186
6. Step 6: Final answer
   x = 47,119.62