Finding the Third Proportional to 2,570,490 and 5,542,679

Step by Step Solution

1. Step 1: Write the proportion equation
   2,570,490 : 5,542,679 = 5,542,679 : x
2. Step 2: Convert to fraction form
   2,570,490/5,542,679 = 5,542,679/x
3. Step 3: Cross multiply
   2,570,490x = 5,542,679 × 5,542,679
4. Step 4: Simplify right side
   2,570,490x = 30,721,290,497,041
5. Step 5: Solve for x
   x = 30,721,290,497,041/2,570,490
6. Step 6: Final answer
   x = 11,951,530.84