Finding the Third Proportional to 12,382,978 and 19,134,851

Step by Step Solution

1. Step 1: Write the proportion equation
   12,382,978 : 19,134,851 = 19,134,851 : x
2. Step 2: Convert to fraction form
   12,382,978/19,134,851 = 19,134,851/x
3. Step 3: Cross multiply
   12,382,978x = 19,134,851 × 19,134,851
4. Step 4: Simplify right side
   12,382,978x = 366,142,522,792,201
5. Step 5: Solve for x
   x = 366,142,522,792,201/12,382,978
6. Step 6: Final answer
   x = 29,568,212.33