Finding the Third Proportional to 21,885 and 30,153

Step by Step Solution

1. Step 1: Write the proportion equation
   21,885 : 30,153 = 30,153 : x
2. Step 2: Convert to fraction form
   21,885/30,153 = 30,153/x
3. Step 3: Cross multiply
   21,885x = 30,153 × 30,153
4. Step 4: Simplify right side
   21,885x = 909,203,409
5. Step 5: Solve for x
   x = 909,203,409/21,885
6. Step 6: Final answer
   x = 41,544.59