Finding the Third Proportional to 4,186,149 and 9,013,605

Step by Step Solution

1. Step 1: Write the proportion equation
   4,186,149 : 9,013,605 = 9,013,605 : x
2. Step 2: Convert to fraction form
   4,186,149/9,013,605 = 9,013,605/x
3. Step 3: Cross multiply
   4,186,149x = 9,013,605 × 9,013,605
4. Step 4: Simplify right side
   4,186,149x = 81,245,075,096,025
5. Step 5: Solve for x
   x = 81,245,075,096,025/4,186,149
6. Step 6: Final answer
   x = 19,408,070.54