Finding the Third Proportional to 4,130,012 and 8,857,886

Step by Step Solution

1. Step 1: Write the proportion equation
   4,130,012 : 8,857,886 = 8,857,886 : x
2. Step 2: Convert to fraction form
   4,130,012/8,857,886 = 8,857,886/x
3. Step 3: Cross multiply
   4,130,012x = 8,857,886 × 8,857,886
4. Step 4: Simplify right side
   4,130,012x = 78,462,144,388,996
5. Step 5: Solve for x
   x = 78,462,144,388,996/4,130,012
6. Step 6: Final answer
   x = 18,998,042.71