Finding the Third Proportional to 8,431,395.75 and 18,141,570

Step by Step Solution

1. Step 1: Write the proportion equation
   8,431,395.75 : 18,141,570 = 18,141,570 : x
2. Step 2: Convert to fraction form
   8,431,395.75/18,141,570 = 18,141,570/x
3. Step 3: Cross multiply
   8,431,395.75x = 18,141,570 × 18,141,570
4. Step 4: Simplify right side
   8,431,395.75x = 329,116,562,064,900
5. Step 5: Solve for x
   x = 329,116,562,064,900/8,431,395.75
6. Step 6: Final answer
   x = 39,034,647.62