Finding the Third Proportional to 33,242 and 72,170

Step by Step Solution

1. Step 1: Write the proportion equation
   33,242 : 72,170 = 72,170 : x
2. Step 2: Convert to fraction form
   33,242/72,170 = 72,170/x
3. Step 3: Cross multiply
   33,242x = 72,170 × 72,170
4. Step 4: Simplify right side
   33,242x = 5,208,508,900
5. Step 5: Solve for x
   x = 5,208,508,900/33,242
6. Step 6: Final answer
   x = 156,684.58