Finding the Third Proportional to 1,188,216 and 2,565,822

Step by Step Solution

1. Step 1: Write the proportion equation
   1,188,216 : 2,565,822 = 2,565,822 : x
2. Step 2: Convert to fraction form
   1,188,216/2,565,822 = 2,565,822/x
3. Step 3: Cross multiply
   1,188,216x = 2,565,822 × 2,565,822
4. Step 4: Simplify right side
   1,188,216x = 6,583,442,535,684
5. Step 5: Solve for x
   x = 6,583,442,535,684/1,188,216
6. Step 6: Final answer
   x = 5,540,610.91