Finding the Third Proportional to 16,390.75 and 35,171

Step by Step Solution

1. Step 1: Write the proportion equation
   16,390.75 : 35,171 = 35,171 : x
2. Step 2: Convert to fraction form
   16,390.75/35,171 = 35,171/x
3. Step 3: Cross multiply
   16,390.75x = 35,171 × 35,171
4. Step 4: Simplify right side
   16,390.75x = 1,236,999,241
5. Step 5: Solve for x
   x = 1,236,999,241/16,390.75
6. Step 6: Final answer
   x = 75,469.35