Finding the Third Proportional to 409,008 and 855,600

Step by Step Solution

1. Step 1: Write the proportion equation
   409,008 : 855,600 = 855,600 : x
2. Step 2: Convert to fraction form
   409,008/855,600 = 855,600/x
3. Step 3: Cross multiply
   409,008x = 855,600 × 855,600
4. Step 4: Simplify right side
   409,008x = 732,051,360,000
5. Step 5: Solve for x
   x = 732,051,360,000/409,008
6. Step 6: Final answer
   x = 1,789,821.62