Finding the Third Proportional to 35.30 and 54.70

Step by Step Solution

1. Step 1: Write the proportion equation
   35.30 : 54.70 = 54.70 : x
2. Step 2: Convert to fraction form
   35.30/54.70 = 54.70/x
3. Step 3: Cross multiply
   35.30x = 54.70 × 54.70
4. Step 4: Simplify right side
   35.30x = 2,992.43
5. Step 5: Solve for x
   x = 2,992.43/35.30
6. Step 6: Final answer
   x = 84.78