Finding the Third Proportional to 2,385,978 and 3,613,698

Step by Step Solution

1. Step 1: Write the proportion equation
   2,385,978 : 3,613,698 = 3,613,698 : x
2. Step 2: Convert to fraction form
   2,385,978/3,613,698 = 3,613,698/x
3. Step 3: Cross multiply
   2,385,978x = 3,613,698 × 3,613,698
4. Step 4: Simplify right side
   2,385,978x = 13,058,813,235,204
5. Step 5: Solve for x
   x = 13,058,813,235,204/2,385,978
6. Step 6: Final answer
   x = 5,473,149.05