Finding the Third Proportional to 1,270,128 and 2,739,674

Step by Step Solution

1. Step 1: Write the proportion equation
   1,270,128 : 2,739,674 = 2,739,674 : x
2. Step 2: Convert to fraction form
   1,270,128/2,739,674 = 2,739,674/x
3. Step 3: Cross multiply
   1,270,128x = 2,739,674 × 2,739,674
4. Step 4: Simplify right side
   1,270,128x = 7,505,813,626,276
5. Step 5: Solve for x
   x = 7,505,813,626,276/1,270,128
6. Step 6: Final answer
   x = 5,909,493.87