Finding the Third Proportional to 301,084.50 and 408,705

Step by Step Solution

1. Step 1: Write the proportion equation
   301,084.50 : 408,705 = 408,705 : x
2. Step 2: Convert to fraction form
   301,084.50/408,705 = 408,705/x
3. Step 3: Cross multiply
   301,084.50x = 408,705 × 408,705
4. Step 4: Simplify right side
   301,084.50x = 167,039,777,025
5. Step 5: Solve for x
   x = 167,039,777,025/301,084.50
6. Step 6: Final answer
   x = 554,793.68