Finding the Third Proportional to 33,778 and 72,790

Step by Step Solution

1. Step 1: Write the proportion equation
   33,778 : 72,790 = 72,790 : x
2. Step 2: Convert to fraction form
   33,778/72,790 = 72,790/x
3. Step 3: Cross multiply
   33,778x = 72,790 × 72,790
4. Step 4: Simplify right side
   33,778x = 5,298,384,100
5. Step 5: Solve for x
   x = 5,298,384,100/33,778
6. Step 6: Final answer
   x = 156,859.02