Finding the Third Proportional to 4,277,636 and 9,511,684

Step by Step Solution

1. Step 1: Write the proportion equation
   4,277,636 : 9,511,684 = 9,511,684 : x
2. Step 2: Convert to fraction form
   4,277,636/9,511,684 = 9,511,684/x
3. Step 3: Cross multiply
   4,277,636x = 9,511,684 × 9,511,684
4. Step 4: Simplify right side
   4,277,636x = 90,472,132,515,856
5. Step 5: Solve for x
   x = 90,472,132,515,856/4,277,636
6. Step 6: Final answer
   x = 21,150,030.65