Finding the Third Proportional to 4,164,618 and 8,445,147

Step by Step Solution

1. Step 1: Write the proportion equation
   4,164,618 : 8,445,147 = 8,445,147 : x
2. Step 2: Convert to fraction form
   4,164,618/8,445,147 = 8,445,147/x
3. Step 3: Cross multiply
   4,164,618x = 8,445,147 × 8,445,147
4. Step 4: Simplify right side
   4,164,618x = 71,320,507,851,609
5. Step 5: Solve for x
   x = 71,320,507,851,609/4,164,618
6. Step 6: Final answer
   x = 17,125,342.07