Finding the Third Proportional to 33,328 and 72,608

Step by Step Solution

1. Step 1: Write the proportion equation
   33,328 : 72,608 = 72,608 : x
2. Step 2: Convert to fraction form
   33,328/72,608 = 72,608/x
3. Step 3: Cross multiply
   33,328x = 72,608 × 72,608
4. Step 4: Simplify right side
   33,328x = 5,271,921,664
5. Step 5: Solve for x
   x = 5,271,921,664/33,328
6. Step 6: Final answer
   x = 158,182.96