Finding the Third Proportional to 40,448 and 82,912

Step by Step Solution

1. Step 1: Write the proportion equation
   40,448 : 82,912 = 82,912 : x
2. Step 2: Convert to fraction form
   40,448/82,912 = 82,912/x
3. Step 3: Cross multiply
   40,448x = 82,912 × 82,912
4. Step 4: Simplify right side
   40,448x = 6,874,399,744
5. Step 5: Solve for x
   x = 6,874,399,744/40,448
6. Step 6: Final answer
   x = 169,956.48