Finding the Third Proportional to 31,911 and 50,506.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,911 : 50,506.50 = 50,506.50 : x
2. Step 2: Convert to fraction form
   31,911/50,506.50 = 50,506.50/x
3. Step 3: Cross multiply
   31,911x = 50,506.50 × 50,506.50
4. Step 4: Simplify right side
   31,911x = 2,550,906,542.25
5. Step 5: Solve for x
   x = 2,550,906,542.25/31,911
6. Step 6: Final answer
   x = 79,938.16