Finding the Third Proportional to 13,836 and 21,459

Step by Step Solution

1. Step 1: Write the proportion equation
   13,836 : 21,459 = 21,459 : x
2. Step 2: Convert to fraction form
   13,836/21,459 = 21,459/x
3. Step 3: Cross multiply
   13,836x = 21,459 × 21,459
4. Step 4: Simplify right side
   13,836x = 460,488,681
5. Step 5: Solve for x
   x = 460,488,681/13,836
6. Step 6: Final answer
   x = 33,281.92