Finding the Third Proportional to 70,288 and 146,405

Step by Step Solution

1. Step 1: Write the proportion equation
   70,288 : 146,405 = 146,405 : x
2. Step 2: Convert to fraction form
   70,288/146,405 = 146,405/x
3. Step 3: Cross multiply
   70,288x = 146,405 × 146,405
4. Step 4: Simplify right side
   70,288x = 21,434,424,025
5. Step 5: Solve for x
   x = 21,434,424,025/70,288
6. Step 6: Final answer
   x = 304,951.40