Finding the Third Proportional to 4,651,782 and 9,855,918

Step by Step Solution

1. Step 1: Write the proportion equation
   4,651,782 : 9,855,918 = 9,855,918 : x
2. Step 2: Convert to fraction form
   4,651,782/9,855,918 = 9,855,918/x
3. Step 3: Cross multiply
   4,651,782x = 9,855,918 × 9,855,918
4. Step 4: Simplify right side
   4,651,782x = 97,139,119,622,724
5. Step 5: Solve for x
   x = 97,139,119,622,724/4,651,782
6. Step 6: Final answer
   x = 20,882,130.68