Finding the Third Proportional to 1,297,018 and 2,072,020

Step by Step Solution

1. Step 1: Write the proportion equation
   1,297,018 : 2,072,020 = 2,072,020 : x
2. Step 2: Convert to fraction form
   1,297,018/2,072,020 = 2,072,020/x
3. Step 3: Cross multiply
   1,297,018x = 2,072,020 × 2,072,020
4. Step 4: Simplify right side
   1,297,018x = 4,293,266,880,400
5. Step 5: Solve for x
   x = 4,293,266,880,400/1,297,018
6. Step 6: Final answer
   x = 3,310,105.86