Finding the Third Proportional to 10,992 and 20,424

Step by Step Solution

1. Step 1: Write the proportion equation
   10,992 : 20,424 = 20,424 : x
2. Step 2: Convert to fraction form
   10,992/20,424 = 20,424/x
3. Step 3: Cross multiply
   10,992x = 20,424 × 20,424
4. Step 4: Simplify right side
   10,992x = 417,139,776
5. Step 5: Solve for x
   x = 417,139,776/10,992
6. Step 6: Final answer
   x = 37,949.40