Finding the Third Proportional to 2,570,455.31 and 5,542,605.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,570,455.31 : 5,542,605.56 = 5,542,605.56 : x
2. Step 2: Convert to fraction form
   2,570,455.31/5,542,605.56 = 5,542,605.56/x
3. Step 3: Cross multiply
   2,570,455.31x = 5,542,605.56 × 5,542,605.56
4. Step 4: Simplify right side
   2,570,455.31x = 30,720,476,421,455.94
5. Step 5: Solve for x
   x = 30,720,476,421,455.94/2,570,455.31
6. Step 6: Final answer
   x = 11,951,375.41