Finding the Third Proportional to 3,953,909 and 8,632,930

Step by Step Solution

1. Step 1: Write the proportion equation
   3,953,909 : 8,632,930 = 8,632,930 : x
2. Step 2: Convert to fraction form
   3,953,909/8,632,930 = 8,632,930/x
3. Step 3: Cross multiply
   3,953,909x = 8,632,930 × 8,632,930
4. Step 4: Simplify right side
   3,953,909x = 74,527,480,384,900
5. Step 5: Solve for x
   x = 74,527,480,384,900/3,953,909
6. Step 6: Final answer
   x = 18,849,063.14