Finding the Third Proportional to 584,830 and 1,256,684

Step by Step Solution

1. Step 1: Write the proportion equation
   584,830 : 1,256,684 = 1,256,684 : x
2. Step 2: Convert to fraction form
   584,830/1,256,684 = 1,256,684/x
3. Step 3: Cross multiply
   584,830x = 1,256,684 × 1,256,684
4. Step 4: Simplify right side
   584,830x = 1,579,254,675,856
5. Step 5: Solve for x
   x = 1,579,254,675,856/584,830
6. Step 6: Final answer
   x = 2,700,365.36