Finding the Third Proportional to 4,203,652 and 8,742,788

Step by Step Solution

1. Step 1: Write the proportion equation
   4,203,652 : 8,742,788 = 8,742,788 : x
2. Step 2: Convert to fraction form
   4,203,652/8,742,788 = 8,742,788/x
3. Step 3: Cross multiply
   4,203,652x = 8,742,788 × 8,742,788
4. Step 4: Simplify right side
   4,203,652x = 76,436,342,012,944
5. Step 5: Solve for x
   x = 76,436,342,012,944/4,203,652
6. Step 6: Final answer
   x = 18,183,318.22