Finding the Third Proportional to 15,336 and 21,705

Step by Step Solution

1. Step 1: Write the proportion equation
   15,336 : 21,705 = 21,705 : x
2. Step 2: Convert to fraction form
   15,336/21,705 = 21,705/x
3. Step 3: Cross multiply
   15,336x = 21,705 × 21,705
4. Step 4: Simplify right side
   15,336x = 471,107,025
5. Step 5: Solve for x
   x = 471,107,025/15,336
6. Step 6: Final answer
   x = 30,719.03