Finding the Third Proportional to 42,228.28 and 91,757.81

Step by Step Solution

1. Step 1: Write the proportion equation
   42,228.28 : 91,757.81 = 91,757.81 : x
2. Step 2: Convert to fraction form
   42,228.28/91,757.81 = 91,757.81/x
3. Step 3: Cross multiply
   42,228.28x = 91,757.81 × 91,757.81
4. Step 4: Simplify right side
   42,228.28x = 8,419,496,154.79
5. Step 5: Solve for x
   x = 8,419,496,154.79/42,228.28
6. Step 6: Final answer
   x = 199,380.51