Finding the Third Proportional to 56.32 and 86.41

Step by Step Solution

1. Step 1: Write the proportion equation
   56.32 : 86.41 = 86.41 : x
2. Step 2: Convert to fraction form
   56.32/86.41 = 86.41/x
3. Step 3: Cross multiply
   56.32x = 86.41 × 86.41
4. Step 4: Simplify right side
   56.32x = 7,467.39
5. Step 5: Solve for x
   x = 7,467.39/56.32
6. Step 6: Final answer
   x = 132.59