Finding the Third Proportional to 1,317,036 and 2,670,405

Step by Step Solution

1. Step 1: Write the proportion equation
   1,317,036 : 2,670,405 = 2,670,405 : x
2. Step 2: Convert to fraction form
   1,317,036/2,670,405 = 2,670,405/x
3. Step 3: Cross multiply
   1,317,036x = 2,670,405 × 2,670,405
4. Step 4: Simplify right side
   1,317,036x = 7,131,062,864,025
5. Step 5: Solve for x
   x = 7,131,062,864,025/1,317,036
6. Step 6: Final answer
   x = 5,414,478.32