Finding the Third Proportional to 9,002,290 and 19,712,142

Step by Step Solution

1. Step 1: Write the proportion equation
   9,002,290 : 19,712,142 = 19,712,142 : x
2. Step 2: Convert to fraction form
   9,002,290/19,712,142 = 19,712,142/x
3. Step 3: Cross multiply
   9,002,290x = 19,712,142 × 19,712,142
4. Step 4: Simplify right side
   9,002,290x = 388,568,542,228,164
5. Step 5: Solve for x
   x = 388,568,542,228,164/9,002,290
6. Step 6: Final answer
   x = 43,163,299.81