Finding the Third Proportional to 3,995,147.81 and 8,662,570.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,995,147.81 : 8,662,570.31 = 8,662,570.31 : x
2. Step 2: Convert to fraction form
   3,995,147.81/8,662,570.31 = 8,662,570.31/x
3. Step 3: Cross multiply
   3,995,147.81x = 8,662,570.31 × 8,662,570.31
4. Step 4: Simplify right side
   3,995,147.81x = 75,040,124,419,006.34
5. Step 5: Solve for x
   x = 75,040,124,419,006.34/3,995,147.81
6. Step 6: Final answer
   x = 18,782,815.54