Finding the Third Proportional to 21,357 and 33,501

Step by Step Solution

1. Step 1: Write the proportion equation
   21,357 : 33,501 = 33,501 : x
2. Step 2: Convert to fraction form
   21,357/33,501 = 33,501/x
3. Step 3: Cross multiply
   21,357x = 33,501 × 33,501
4. Step 4: Simplify right side
   21,357x = 1,122,317,001
5. Step 5: Solve for x
   x = 1,122,317,001/21,357
6. Step 6: Final answer
   x = 52,550.31