Finding the Third Proportional to 4,259,666 and 9,265,684

Step by Step Solution

1. Step 1: Write the proportion equation
   4,259,666 : 9,265,684 = 9,265,684 : x
2. Step 2: Convert to fraction form
   4,259,666/9,265,684 = 9,265,684/x
3. Step 3: Cross multiply
   4,259,666x = 9,265,684 × 9,265,684
4. Step 4: Simplify right side
   4,259,666x = 85,852,899,987,856
5. Step 5: Solve for x
   x = 85,852,899,987,856/4,259,666
6. Step 6: Final answer
   x = 20,154,843.12