Finding the Third Proportional to 1,270,138 and 2,739,698

Step by Step Solution

1. Step 1: Write the proportion equation
   1,270,138 : 2,739,698 = 2,739,698 : x
2. Step 2: Convert to fraction form
   1,270,138/2,739,698 = 2,739,698/x
3. Step 3: Cross multiply
   1,270,138x = 2,739,698 × 2,739,698
4. Step 4: Simplify right side
   1,270,138x = 7,505,945,131,204
5. Step 5: Solve for x
   x = 7,505,945,131,204/1,270,138
6. Step 6: Final answer
   x = 5,909,550.88