Finding the Third Proportional to 744,640 and 1,608,768

Step by Step Solution

1. Step 1: Write the proportion equation
   744,640 : 1,608,768 = 1,608,768 : x
2. Step 2: Convert to fraction form
   744,640/1,608,768 = 1,608,768/x
3. Step 3: Cross multiply
   744,640x = 1,608,768 × 1,608,768
4. Step 4: Simplify right side
   744,640x = 2,588,134,477,824
5. Step 5: Solve for x
   x = 2,588,134,477,824/744,640
6. Step 6: Final answer
   x = 3,475,685.54