Finding the Third Proportional to 1,291,667 and 1,992,005

Step by Step Solution

1. Step 1: Write the proportion equation
   1,291,667 : 1,992,005 = 1,992,005 : x
2. Step 2: Convert to fraction form
   1,291,667/1,992,005 = 1,992,005/x
3. Step 3: Cross multiply
   1,291,667x = 1,992,005 × 1,992,005
4. Step 4: Simplify right side
   1,291,667x = 3,968,083,920,025
5. Step 5: Solve for x
   x = 3,968,083,920,025/1,291,667
6. Step 6: Final answer
   x = 3,072,064.18