Finding the Third Proportional to 2,643,858 and 3,567,189

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643,858 : 3,567,189 = 3,567,189 : x
2. Step 2: Convert to fraction form
   2,643,858/3,567,189 = 3,567,189/x
3. Step 3: Cross multiply
   2,643,858x = 3,567,189 × 3,567,189
4. Step 4: Simplify right side
   2,643,858x = 12,724,837,361,721
5. Step 5: Solve for x
   x = 12,724,837,361,721/2,643,858
6. Step 6: Final answer
   x = 4,812,980.64