Finding the Third Proportional to 284,870 and 614,020

Step by Step Solution

1. Step 1: Write the proportion equation
   284,870 : 614,020 = 614,020 : x
2. Step 2: Convert to fraction form
   284,870/614,020 = 614,020/x
3. Step 3: Cross multiply
   284,870x = 614,020 × 614,020
4. Step 4: Simplify right side
   284,870x = 377,020,560,400
5. Step 5: Solve for x
   x = 377,020,560,400/284,870
6. Step 6: Final answer
   x = 1,323,482.85