Finding the Third Proportional to 1,278,884 and 2,798,476

Step by Step Solution

1. Step 1: Write the proportion equation
   1,278,884 : 2,798,476 = 2,798,476 : x
2. Step 2: Convert to fraction form
   1,278,884/2,798,476 = 2,798,476/x
3. Step 3: Cross multiply
   1,278,884x = 2,798,476 × 2,798,476
4. Step 4: Simplify right side
   1,278,884x = 7,831,467,922,576
5. Step 5: Solve for x
   x = 7,831,467,922,576/1,278,884
6. Step 6: Final answer
   x = 6,123,673.39