Finding the Third Proportional to 2,261,871 and 4,878,009

Step by Step Solution

1. Step 1: Write the proportion equation
   2,261,871 : 4,878,009 = 4,878,009 : x
2. Step 2: Convert to fraction form
   2,261,871/4,878,009 = 4,878,009/x
3. Step 3: Cross multiply
   2,261,871x = 4,878,009 × 4,878,009
4. Step 4: Simplify right side
   2,261,871x = 23,794,971,804,081
5. Step 5: Solve for x
   x = 23,794,971,804,081/2,261,871
6. Step 6: Final answer
   x = 10,520,039.30