Finding the Third Proportional to 904,853 and 1,399,789

Step by Step Solution

1. Step 1: Write the proportion equation
   904,853 : 1,399,789 = 1,399,789 : x
2. Step 2: Convert to fraction form
   904,853/1,399,789 = 1,399,789/x
3. Step 3: Cross multiply
   904,853x = 1,399,789 × 1,399,789
4. Step 4: Simplify right side
   904,853x = 1,959,409,244,521
5. Step 5: Solve for x
   x = 1,959,409,244,521/904,853
6. Step 6: Final answer
   x = 2,165,444.82