Finding the Third Proportional to 50.47 and 83.30

Step by Step Solution

1. Step 1: Write the proportion equation
   50.47 : 83.30 = 83.30 : x
2. Step 2: Convert to fraction form
   50.47/83.30 = 83.30/x
3. Step 3: Cross multiply
   50.47x = 83.30 × 83.30
4. Step 4: Simplify right side
   50.47x = 6,938.37
5. Step 5: Solve for x
   x = 6,938.37/50.47
6. Step 6: Final answer
   x = 137.48