Finding the Third Proportional to 904,408 and 1,399,758

Step by Step Solution

1. Step 1: Write the proportion equation
   904,408 : 1,399,758 = 1,399,758 : x
2. Step 2: Convert to fraction form
   904,408/1,399,758 = 1,399,758/x
3. Step 3: Cross multiply
   904,408x = 1,399,758 × 1,399,758
4. Step 4: Simplify right side
   904,408x = 1,959,322,458,564
5. Step 5: Solve for x
   x = 1,959,322,458,564/904,408
6. Step 6: Final answer
   x = 2,166,414.34