Finding the Third Proportional to 904,986 and 1,787,128

Step by Step Solution

1. Step 1: Write the proportion equation
   904,986 : 1,787,128 = 1,787,128 : x
2. Step 2: Convert to fraction form
   904,986/1,787,128 = 1,787,128/x
3. Step 3: Cross multiply
   904,986x = 1,787,128 × 1,787,128
4. Step 4: Simplify right side
   904,986x = 3,193,826,488,384
5. Step 5: Solve for x
   x = 3,193,826,488,384/904,986
6. Step 6: Final answer
   x = 3,529,144.64