Finding the Third Proportional to 823,570 and 1,778,360

Step by Step Solution

1. Step 1: Write the proportion equation
   823,570 : 1,778,360 = 1,778,360 : x
2. Step 2: Convert to fraction form
   823,570/1,778,360 = 1,778,360/x
3. Step 3: Cross multiply
   823,570x = 1,778,360 × 1,778,360
4. Step 4: Simplify right side
   823,570x = 3,162,564,289,600
5. Step 5: Solve for x
   x = 3,162,564,289,600/823,570
6. Step 6: Final answer
   x = 3,840,067.38