Finding the Third Proportional to 42,728 and 91,016

Step by Step Solution

1. Step 1: Write the proportion equation
   42,728 : 91,016 = 91,016 : x
2. Step 2: Convert to fraction form
   42,728/91,016 = 91,016/x
3. Step 3: Cross multiply
   42,728x = 91,016 × 91,016
4. Step 4: Simplify right side
   42,728x = 8,283,912,256
5. Step 5: Solve for x
   x = 8,283,912,256/42,728
6. Step 6: Final answer
   x = 193,875.50