Finding the Third Proportional to 1,066,014 and 1,408,509

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066,014 : 1,408,509 = 1,408,509 : x
2. Step 2: Convert to fraction form
   1,066,014/1,408,509 = 1,408,509/x
3. Step 3: Cross multiply
   1,066,014x = 1,408,509 × 1,408,509
4. Step 4: Simplify right side
   1,066,014x = 1,983,897,603,081
5. Step 5: Solve for x
   x = 1,983,897,603,081/1,066,014
6. Step 6: Final answer
   x = 1,861,042.73