Finding the Third Proportional to 50,728.50 and 108,931.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,728.50 : 108,931.50 = 108,931.50 : x
2. Step 2: Convert to fraction form
   50,728.50/108,931.50 = 108,931.50/x
3. Step 3: Cross multiply
   50,728.50x = 108,931.50 × 108,931.50
4. Step 4: Simplify right side
   50,728.50x = 11,866,071,692.25
5. Step 5: Solve for x
   x = 11,866,071,692.25/50,728.50
6. Step 6: Final answer
   x = 233,913.32