Finding the Third Proportional to 124,468 and 196,422

Step by Step Solution

1. Step 1: Write the proportion equation
   124,468 : 196,422 = 196,422 : x
2. Step 2: Convert to fraction form
   124,468/196,422 = 196,422/x
3. Step 3: Cross multiply
   124,468x = 196,422 × 196,422
4. Step 4: Simplify right side
   124,468x = 38,581,602,084
5. Step 5: Solve for x
   x = 38,581,602,084/124,468
6. Step 6: Final answer
   x = 309,972.06