Finding the Third Proportional to 1,188,212 and 2,565,818

Step by Step Solution

1. Step 1: Write the proportion equation
   1,188,212 : 2,565,818 = 2,565,818 : x
2. Step 2: Convert to fraction form
   1,188,212/2,565,818 = 2,565,818/x
3. Step 3: Cross multiply
   1,188,212x = 2,565,818 × 2,565,818
4. Step 4: Simplify right side
   1,188,212x = 6,583,422,009,124
5. Step 5: Solve for x
   x = 6,583,422,009,124/1,188,212
6. Step 6: Final answer
   x = 5,540,612.29