Finding the Third Proportional to 2,364,978 and 5,187,771

Step by Step Solution

1. Step 1: Write the proportion equation
   2,364,978 : 5,187,771 = 5,187,771 : x
2. Step 2: Convert to fraction form
   2,364,978/5,187,771 = 5,187,771/x
3. Step 3: Cross multiply
   2,364,978x = 5,187,771 × 5,187,771
4. Step 4: Simplify right side
   2,364,978x = 26,912,967,948,441
5. Step 5: Solve for x
   x = 26,912,967,948,441/2,364,978
6. Step 6: Final answer
   x = 11,379,796.32