Finding the Third Proportional to 3,953,900 and 8,632,804

Step by Step Solution

1. Step 1: Write the proportion equation
   3,953,900 : 8,632,804 = 8,632,804 : x
2. Step 2: Convert to fraction form
   3,953,900/8,632,804 = 8,632,804/x
3. Step 3: Cross multiply
   3,953,900x = 8,632,804 × 8,632,804
4. Step 4: Simplify right side
   3,953,900x = 74,525,304,902,416
5. Step 5: Solve for x
   x = 74,525,304,902,416/3,953,900
6. Step 6: Final answer
   x = 18,848,555.83