Finding the Third Proportional to 13,863 and 21,321

Step by Step Solution

1. Step 1: Write the proportion equation
   13,863 : 21,321 = 21,321 : x
2. Step 2: Convert to fraction form
   13,863/21,321 = 21,321/x
3. Step 3: Cross multiply
   13,863x = 21,321 × 21,321
4. Step 4: Simplify right side
   13,863x = 454,585,041
5. Step 5: Solve for x
   x = 454,585,041/13,863
6. Step 6: Final answer
   x = 32,791.25