Finding the Third Proportional to 1,288,268 and 2,798,516

Step by Step Solution

1. Step 1: Write the proportion equation
   1,288,268 : 2,798,516 = 2,798,516 : x
2. Step 2: Convert to fraction form
   1,288,268/2,798,516 = 2,798,516/x
3. Step 3: Cross multiply
   1,288,268x = 2,798,516 × 2,798,516
4. Step 4: Simplify right side
   1,288,268x = 7,831,691,802,256
5. Step 5: Solve for x
   x = 7,831,691,802,256/1,288,268
6. Step 6: Final answer
   x = 6,079,241.12