Finding the Third Proportional to 33,722 and 72,630

Step by Step Solution

1. Step 1: Write the proportion equation
   33,722 : 72,630 = 72,630 : x
2. Step 2: Convert to fraction form
   33,722/72,630 = 72,630/x
3. Step 3: Cross multiply
   33,722x = 72,630 × 72,630
4. Step 4: Simplify right side
   33,722x = 5,275,116,900
5. Step 5: Solve for x
   x = 5,275,116,900/33,722
6. Step 6: Final answer
   x = 156,429.54