Finding the Third Proportional to 30.22 and 61.86

Step by Step Solution

1. Step 1: Write the proportion equation
   30.22 : 61.86 = 61.86 : x
2. Step 2: Convert to fraction form
   30.22/61.86 = 61.86/x
3. Step 3: Cross multiply
   30.22x = 61.86 × 61.86
4. Step 4: Simplify right side
   30.22x = 3,826.34
5. Step 5: Solve for x
   x = 3,826.34/30.22
6. Step 6: Final answer
   x = 126.63