Finding the Third Proportional to 25.31 and 50.31

Step by Step Solution

1. Step 1: Write the proportion equation
   25.31 : 50.31 = 50.31 : x
2. Step 2: Convert to fraction form
   25.31/50.31 = 50.31/x
3. Step 3: Cross multiply
   25.31x = 50.31 × 50.31
4. Step 4: Simplify right side
   25.31x = 2,530.95
5. Step 5: Solve for x
   x = 2,530.95/25.31
6. Step 6: Final answer
   x = 99.99