Finding the Third Proportional to 33,921.28 and 73,408.78

Step by Step Solution

1. Step 1: Write the proportion equation
   33,921.28 : 73,408.78 = 73,408.78 : x
2. Step 2: Convert to fraction form
   33,921.28/73,408.78 = 73,408.78/x
3. Step 3: Cross multiply
   33,921.28x = 73,408.78 × 73,408.78
4. Step 4: Simplify right side
   33,921.28x = 5,388,849,164.61
5. Step 5: Solve for x
   x = 5,388,849,164.61/33,921.28
6. Step 6: Final answer
   x = 158,863.37