Finding the Third Proportional to 42,028 and 91,055

Step by Step Solution

1. Step 1: Write the proportion equation
   42,028 : 91,055 = 91,055 : x
2. Step 2: Convert to fraction form
   42,028/91,055 = 91,055/x
3. Step 3: Cross multiply
   42,028x = 91,055 × 91,055
4. Step 4: Simplify right side
   42,028x = 8,291,013,025
5. Step 5: Solve for x
   x = 8,291,013,025/42,028
6. Step 6: Final answer
   x = 197,273.56