Finding the Third Proportional to 33,279 and 72,390

Step by Step Solution

1. Step 1: Write the proportion equation
   33,279 : 72,390 = 72,390 : x
2. Step 2: Convert to fraction form
   33,279/72,390 = 72,390/x
3. Step 3: Cross multiply
   33,279x = 72,390 × 72,390
4. Step 4: Simplify right side
   33,279x = 5,240,312,100
5. Step 5: Solve for x
   x = 5,240,312,100/33,279
6. Step 6: Final answer
   x = 157,466.03