Finding the Third Proportional to 1,288,672 and 2,763,968

Step by Step Solution

1. Step 1: Write the proportion equation
   1,288,672 : 2,763,968 = 2,763,968 : x
2. Step 2: Convert to fraction form
   1,288,672/2,763,968 = 2,763,968/x
3. Step 3: Cross multiply
   1,288,672x = 2,763,968 × 2,763,968
4. Step 4: Simplify right side
   1,288,672x = 7,639,519,105,024
5. Step 5: Solve for x
   x = 7,639,519,105,024/1,288,672
6. Step 6: Final answer
   x = 5,928,210.67