Finding the Third Proportional to 1,211,740 and 2,548,828

Step by Step Solution

1. Step 1: Write the proportion equation
   1,211,740 : 2,548,828 = 2,548,828 : x
2. Step 2: Convert to fraction form
   1,211,740/2,548,828 = 2,548,828/x
3. Step 3: Cross multiply
   1,211,740x = 2,548,828 × 2,548,828
4. Step 4: Simplify right side
   1,211,740x = 6,496,524,173,584
5. Step 5: Solve for x
   x = 6,496,524,173,584/1,211,740
6. Step 6: Final answer
   x = 5,361,318.58