Finding the Third Proportional to 4,059,618 and 8,455,086

Step by Step Solution

1. Step 1: Write the proportion equation
   4,059,618 : 8,455,086 = 8,455,086 : x
2. Step 2: Convert to fraction form
   4,059,618/8,455,086 = 8,455,086/x
3. Step 3: Cross multiply
   4,059,618x = 8,455,086 × 8,455,086
4. Step 4: Simplify right side
   4,059,618x = 71,488,479,267,396
5. Step 5: Solve for x
   x = 71,488,479,267,396/4,059,618
6. Step 6: Final answer
   x = 17,609,656.69