Finding the Third Proportional to 4,128,232 and 8,787,906

Step by Step Solution

1. Step 1: Write the proportion equation
   4,128,232 : 8,787,906 = 8,787,906 : x
2. Step 2: Convert to fraction form
   4,128,232/8,787,906 = 8,787,906/x
3. Step 3: Cross multiply
   4,128,232x = 8,787,906 × 8,787,906
4. Step 4: Simplify right side
   4,128,232x = 77,227,291,864,836
5. Step 5: Solve for x
   x = 77,227,291,864,836/4,128,232
6. Step 6: Final answer
   x = 18,707,110.42