Finding the Third Proportional to 1,268,538 and 2,661,633

Step by Step Solution

1. Step 1: Write the proportion equation
   1,268,538 : 2,661,633 = 2,661,633 : x
2. Step 2: Convert to fraction form
   1,268,538/2,661,633 = 2,661,633/x
3. Step 3: Cross multiply
   1,268,538x = 2,661,633 × 2,661,633
4. Step 4: Simplify right side
   1,268,538x = 7,084,290,226,689
5. Step 5: Solve for x
   x = 7,084,290,226,689/1,268,538
6. Step 6: Final answer
   x = 5,584,610.18