Finding the Third Proportional to 397,256 and 907,596

Step by Step Solution

1. Step 1: Write the proportion equation
   397,256 : 907,596 = 907,596 : x
2. Step 2: Convert to fraction form
   397,256/907,596 = 907,596/x
3. Step 3: Cross multiply
   397,256x = 907,596 × 907,596
4. Step 4: Simplify right side
   397,256x = 823,730,499,216
5. Step 5: Solve for x
   x = 823,730,499,216/397,256
6. Step 6: Final answer
   x = 2,073,550.81