Finding the Third Proportional to 82.31 and 190.13

Step by Step Solution

1. Step 1: Write the proportion equation
   82.31 : 190.13 = 190.13 : x
2. Step 2: Convert to fraction form
   82.31/190.13 = 190.13/x
3. Step 3: Cross multiply
   82.31x = 190.13 × 190.13
4. Step 4: Simplify right side
   82.31x = 36,147.52
5. Step 5: Solve for x
   x = 36,147.52/82.31
6. Step 6: Final answer
   x = 439.15