Finding the Third Proportional to 10,119 and 20,724

Step by Step Solution

1. Step 1: Write the proportion equation
   10,119 : 20,724 = 20,724 : x
2. Step 2: Convert to fraction form
   10,119/20,724 = 20,724/x
3. Step 3: Cross multiply
   10,119x = 20,724 × 20,724
4. Step 4: Simplify right side
   10,119x = 429,484,176
5. Step 5: Solve for x
   x = 429,484,176/10,119
6. Step 6: Final answer
   x = 42,443.34