Finding the Third Proportional to 4,010,290 and 8,659,796

Step by Step Solution

1. Step 1: Write the proportion equation
   4,010,290 : 8,659,796 = 8,659,796 : x
2. Step 2: Convert to fraction form
   4,010,290/8,659,796 = 8,659,796/x
3. Step 3: Cross multiply
   4,010,290x = 8,659,796 × 8,659,796
4. Step 4: Simplify right side
   4,010,290x = 74,992,066,761,616
5. Step 5: Solve for x
   x = 74,992,066,761,616/4,010,290
6. Step 6: Final answer
   x = 18,699,911.17