Finding the Third Proportional to 33,990 and 73,450

Step by Step Solution

1. Step 1: Write the proportion equation
   33,990 : 73,450 = 73,450 : x
2. Step 2: Convert to fraction form
   33,990/73,450 = 73,450/x
3. Step 3: Cross multiply
   33,990x = 73,450 × 73,450
4. Step 4: Simplify right side
   33,990x = 5,394,902,500
5. Step 5: Solve for x
   x = 5,394,902,500/33,990
6. Step 6: Final answer
   x = 158,720.29