Finding the Third Proportional to 1,299,912 and 2,008,878

Step by Step Solution

1. Step 1: Write the proportion equation
   1,299,912 : 2,008,878 = 2,008,878 : x
2. Step 2: Convert to fraction form
   1,299,912/2,008,878 = 2,008,878/x
3. Step 3: Cross multiply
   1,299,912x = 2,008,878 × 2,008,878
4. Step 4: Simplify right side
   1,299,912x = 4,035,590,818,884
5. Step 5: Solve for x
   x = 4,035,590,818,884/1,299,912
6. Step 6: Final answer
   x = 3,104,510.78