Finding the Third Proportional to 56.31 and 130.56

Step by Step Solution

1. Step 1: Write the proportion equation
   56.31 : 130.56 = 130.56 : x
2. Step 2: Convert to fraction form
   56.31/130.56 = 130.56/x
3. Step 3: Cross multiply
   56.31x = 130.56 × 130.56
4. Step 4: Simplify right side
   56.31x = 17,046.57
5. Step 5: Solve for x
   x = 17,046.57/56.31
6. Step 6: Final answer
   x = 302.71