Finding the Third Proportional to 20,908.50 and 50,569.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,908.50 : 50,569.50 = 50,569.50 : x
2. Step 2: Convert to fraction form
   20,908.50/50,569.50 = 50,569.50/x
3. Step 3: Cross multiply
   20,908.50x = 50,569.50 × 50,569.50
4. Step 4: Simplify right side
   20,908.50x = 2,557,274,330.25
5. Step 5: Solve for x
   x = 2,557,274,330.25/20,908.50
6. Step 6: Final answer
   x = 122,307.88