Finding the Third Proportional to 42,257.79 and 91,076.59

Step by Step Solution

1. Step 1: Write the proportion equation
   42,257.79 : 91,076.59 = 91,076.59 : x
2. Step 2: Convert to fraction form
   42,257.79/91,076.59 = 91,076.59/x
3. Step 3: Cross multiply
   42,257.79x = 91,076.59 × 91,076.59
4. Step 4: Simplify right side
   42,257.79x = 8,294,945,217.57
5. Step 5: Solve for x
   x = 8,294,945,217.57/42,257.79
6. Step 6: Final answer
   x = 196,293.85