Finding the Third Proportional to 33,080 and 72,100

Step by Step Solution

1. Step 1: Write the proportion equation
   33,080 : 72,100 = 72,100 : x
2. Step 2: Convert to fraction form
   33,080/72,100 = 72,100/x
3. Step 3: Cross multiply
   33,080x = 72,100 × 72,100
4. Step 4: Simplify right side
   33,080x = 5,198,410,000
5. Step 5: Solve for x
   x = 5,198,410,000/33,080
6. Step 6: Final answer
   x = 157,146.61