Finding the Third Proportional to 4,409,142 and 9,448,134

Step by Step Solution

1. Step 1: Write the proportion equation
   4,409,142 : 9,448,134 = 9,448,134 : x
2. Step 2: Convert to fraction form
   4,409,142/9,448,134 = 9,448,134/x
3. Step 3: Cross multiply
   4,409,142x = 9,448,134 × 9,448,134
4. Step 4: Simplify right side
   4,409,142x = 89,267,236,081,956
5. Step 5: Solve for x
   x = 89,267,236,081,956/4,409,142
6. Step 6: Final answer
   x = 20,245,942.65