Finding the Third Proportional to 50,738 and 80,805

Step by Step Solution

1. Step 1: Write the proportion equation
   50,738 : 80,805 = 80,805 : x
2. Step 2: Convert to fraction form
   50,738/80,805 = 80,805/x
3. Step 3: Cross multiply
   50,738x = 80,805 × 80,805
4. Step 4: Simplify right side
   50,738x = 6,529,448,025
5. Step 5: Solve for x
   x = 6,529,448,025/50,738
6. Step 6: Final answer
   x = 128,689.50