Finding the Third Proportional to 33,220 and 71,360

Step by Step Solution

1. Step 1: Write the proportion equation
   33,220 : 71,360 = 71,360 : x
2. Step 2: Convert to fraction form
   33,220/71,360 = 71,360/x
3. Step 3: Cross multiply
   33,220x = 71,360 × 71,360
4. Step 4: Simplify right side
   33,220x = 5,092,249,600
5. Step 5: Solve for x
   x = 5,092,249,600/33,220
6. Step 6: Final answer
   x = 153,288.67