Finding the Third Proportional to 4,203,651 and 8,742,786

Step by Step Solution

1. Step 1: Write the proportion equation
   4,203,651 : 8,742,786 = 8,742,786 : x
2. Step 2: Convert to fraction form
   4,203,651/8,742,786 = 8,742,786/x
3. Step 3: Cross multiply
   4,203,651x = 8,742,786 × 8,742,786
4. Step 4: Simplify right side
   4,203,651x = 76,436,307,041,796
5. Step 5: Solve for x
   x = 76,436,307,041,796/4,203,651
6. Step 6: Final answer
   x = 18,183,314.23