Finding the Third Proportional to 10,104 and 20,619

Step by Step Solution

1. Step 1: Write the proportion equation
   10,104 : 20,619 = 20,619 : x
2. Step 2: Convert to fraction form
   10,104/20,619 = 20,619/x
3. Step 3: Cross multiply
   10,104x = 20,619 × 20,619
4. Step 4: Simplify right side
   10,104x = 425,143,161
5. Step 5: Solve for x
   x = 425,143,161/10,104
6. Step 6: Final answer
   x = 42,076.72