Finding the Third Proportional to 743,256 and 1,097,388

Step by Step Solution

1. Step 1: Write the proportion equation
   743,256 : 1,097,388 = 1,097,388 : x
2. Step 2: Convert to fraction form
   743,256/1,097,388 = 1,097,388/x
3. Step 3: Cross multiply
   743,256x = 1,097,388 × 1,097,388
4. Step 4: Simplify right side
   743,256x = 1,204,260,422,544
5. Step 5: Solve for x
   x = 1,204,260,422,544/743,256
6. Step 6: Final answer
   x = 1,620,249.85