Finding the Third Proportional to 616,640 and 1,338,104

Step by Step Solution

1. Step 1: Write the proportion equation
   616,640 : 1,338,104 = 1,338,104 : x
2. Step 2: Convert to fraction form
   616,640/1,338,104 = 1,338,104/x
3. Step 3: Cross multiply
   616,640x = 1,338,104 × 1,338,104
4. Step 4: Simplify right side
   616,640x = 1,790,522,314,816
5. Step 5: Solve for x
   x = 1,790,522,314,816/616,640
6. Step 6: Final answer
   x = 2,903,675.26