Finding the Third Proportional to 196,361 and 424,055

Step by Step Solution

1. Step 1: Write the proportion equation
   196,361 : 424,055 = 424,055 : x
2. Step 2: Convert to fraction form
   196,361/424,055 = 424,055/x
3. Step 3: Cross multiply
   196,361x = 424,055 × 424,055
4. Step 4: Simplify right side
   196,361x = 179,822,643,025
5. Step 5: Solve for x
   x = 179,822,643,025/196,361
6. Step 6: Final answer
   x = 915,775.75