Finding the Third Proportional to 49,640 and 100,720

Step by Step Solution

1. Step 1: Write the proportion equation
   49,640 : 100,720 = 100,720 : x
2. Step 2: Convert to fraction form
   49,640/100,720 = 100,720/x
3. Step 3: Cross multiply
   49,640x = 100,720 × 100,720
4. Step 4: Simplify right side
   49,640x = 10,144,518,400
5. Step 5: Solve for x
   x = 10,144,518,400/49,640
6. Step 6: Final answer
   x = 204,361.77