Finding the Third Proportional to 1,438,562 and 2,147,992

Step by Step Solution

1. Step 1: Write the proportion equation
   1,438,562 : 2,147,992 = 2,147,992 : x
2. Step 2: Convert to fraction form
   1,438,562/2,147,992 = 2,147,992/x
3. Step 3: Cross multiply
   1,438,562x = 2,147,992 × 2,147,992
4. Step 4: Simplify right side
   1,438,562x = 4,613,869,632,064
5. Step 5: Solve for x
   x = 4,613,869,632,064/1,438,562
6. Step 6: Final answer
   x = 3,207,278.96