Finding the Third Proportional to 1,281,768 and 2,729,208

Step by Step Solution

1. Step 1: Write the proportion equation
   1,281,768 : 2,729,208 = 2,729,208 : x
2. Step 2: Convert to fraction form
   1,281,768/2,729,208 = 2,729,208/x
3. Step 3: Cross multiply
   1,281,768x = 2,729,208 × 2,729,208
4. Step 4: Simplify right side
   1,281,768x = 7,448,576,307,264
5. Step 5: Solve for x
   x = 7,448,576,307,264/1,281,768
6. Step 6: Final answer
   x = 5,811,173.56