Finding the Third Proportional to 10,158 and 19,812

Step by Step Solution

1. Step 1: Write the proportion equation
   10,158 : 19,812 = 19,812 : x
2. Step 2: Convert to fraction form
   10,158/19,812 = 19,812/x
3. Step 3: Cross multiply
   10,158x = 19,812 × 19,812
4. Step 4: Simplify right side
   10,158x = 392,515,344
5. Step 5: Solve for x
   x = 392,515,344/10,158
6. Step 6: Final answer
   x = 38,641.01