Finding the Third Proportional to 10,389 and 22,389

Step by Step Solution

1. Step 1: Write the proportion equation
   10,389 : 22,389 = 22,389 : x
2. Step 2: Convert to fraction form
   10,389/22,389 = 22,389/x
3. Step 3: Cross multiply
   10,389x = 22,389 × 22,389
4. Step 4: Simplify right side
   10,389x = 501,267,321
5. Step 5: Solve for x
   x = 501,267,321/10,389
6. Step 6: Final answer
   x = 48,249.81