Finding the Third Proportional to 10,124 and 13,621

Step by Step Solution

1. Step 1: Write the proportion equation
   10,124 : 13,621 = 13,621 : x
2. Step 2: Convert to fraction form
   10,124/13,621 = 13,621/x
3. Step 3: Cross multiply
   10,124x = 13,621 × 13,621
4. Step 4: Simplify right side
   10,124x = 185,531,641
5. Step 5: Solve for x
   x = 185,531,641/10,124
6. Step 6: Final answer
   x = 18,325.92