Finding the Third Proportional to 909,256 and 1,398,003

Step by Step Solution

1. Step 1: Write the proportion equation
   909,256 : 1,398,003 = 1,398,003 : x
2. Step 2: Convert to fraction form
   909,256/1,398,003 = 1,398,003/x
3. Step 3: Cross multiply
   909,256x = 1,398,003 × 1,398,003
4. Step 4: Simplify right side
   909,256x = 1,954,412,388,009
5. Step 5: Solve for x
   x = 1,954,412,388,009/909,256
6. Step 6: Final answer
   x = 2,149,463.28