Finding the Third Proportional to 33,390 and 73,380

Step by Step Solution

1. Step 1: Write the proportion equation
   33,390 : 73,380 = 73,380 : x
2. Step 2: Convert to fraction form
   33,390/73,380 = 73,380/x
3. Step 3: Cross multiply
   33,390x = 73,380 × 73,380
4. Step 4: Simplify right side
   33,390x = 5,384,624,400
5. Step 5: Solve for x
   x = 5,384,624,400/33,390
6. Step 6: Final answer
   x = 161,264.58