Finding the Third Proportional to 1,279,478 and 2,757,240

Step by Step Solution

1. Step 1: Write the proportion equation
   1,279,478 : 2,757,240 = 2,757,240 : x
2. Step 2: Convert to fraction form
   1,279,478/2,757,240 = 2,757,240/x
3. Step 3: Cross multiply
   1,279,478x = 2,757,240 × 2,757,240
4. Step 4: Simplify right side
   1,279,478x = 7,602,372,417,600
5. Step 5: Solve for x
   x = 7,602,372,417,600/1,279,478
6. Step 6: Final answer
   x = 5,941,776.58