Finding the Third Proportional to 21,978 and 33,043

Step by Step Solution

1. Step 1: Write the proportion equation
   21,978 : 33,043 = 33,043 : x
2. Step 2: Convert to fraction form
   21,978/33,043 = 33,043/x
3. Step 3: Cross multiply
   21,978x = 33,043 × 33,043
4. Step 4: Simplify right side
   21,978x = 1,091,839,849
5. Step 5: Solve for x
   x = 1,091,839,849/21,978
6. Step 6: Final answer
   x = 49,678.76