Finding the Third Proportional to 132.61 and 200.39

Step by Step Solution

1. Step 1: Write the proportion equation
   132.61 : 200.39 = 200.39 : x
2. Step 2: Convert to fraction form
   132.61/200.39 = 200.39/x
3. Step 3: Cross multiply
   132.61x = 200.39 × 200.39
4. Step 4: Simplify right side
   132.61x = 40,156.40
5. Step 5: Solve for x
   x = 40,156.40/132.61
6. Step 6: Final answer
   x = 302.82