Finding the Third Proportional to 50,608.50 and 80,418

Step by Step Solution

1. Step 1: Write the proportion equation
   50,608.50 : 80,418 = 80,418 : x
2. Step 2: Convert to fraction form
   50,608.50/80,418 = 80,418/x
3. Step 3: Cross multiply
   50,608.50x = 80,418 × 80,418
4. Step 4: Simplify right side
   50,608.50x = 6,467,054,724
5. Step 5: Solve for x
   x = 6,467,054,724/50,608.50
6. Step 6: Final answer
   x = 127,785.94