Finding the Third Proportional to 410,276 and 862,020

Step by Step Solution

1. Step 1: Write the proportion equation
   410,276 : 862,020 = 862,020 : x
2. Step 2: Convert to fraction form
   410,276/862,020 = 862,020/x
3. Step 3: Cross multiply
   410,276x = 862,020 × 862,020
4. Step 4: Simplify right side
   410,276x = 743,078,480,400
5. Step 5: Solve for x
   x = 743,078,480,400/410,276
6. Step 6: Final answer
   x = 1,811,167.31