Finding the Third Proportional to 20,918 and 30,243

Step by Step Solution

1. Step 1: Write the proportion equation
   20,918 : 30,243 = 30,243 : x
2. Step 2: Convert to fraction form
   20,918/30,243 = 30,243/x
3. Step 3: Cross multiply
   20,918x = 30,243 × 30,243
4. Step 4: Simplify right side
   20,918x = 914,639,049
5. Step 5: Solve for x
   x = 914,639,049/20,918
6. Step 6: Final answer
   x = 43,724.98