Finding the Third Proportional to 42,336 and 91,422

Step by Step Solution

1. Step 1: Write the proportion equation
   42,336 : 91,422 = 91,422 : x
2. Step 2: Convert to fraction form
   42,336/91,422 = 91,422/x
3. Step 3: Cross multiply
   42,336x = 91,422 × 91,422
4. Step 4: Simplify right side
   42,336x = 8,357,982,084
5. Step 5: Solve for x
   x = 8,357,982,084/42,336
6. Step 6: Final answer
   x = 197,420.21