Finding the Third Proportional to 665,778 and 1,456,107

Step by Step Solution

1. Step 1: Write the proportion equation
   665,778 : 1,456,107 = 1,456,107 : x
2. Step 2: Convert to fraction form
   665,778/1,456,107 = 1,456,107/x
3. Step 3: Cross multiply
   665,778x = 1,456,107 × 1,456,107
4. Step 4: Simplify right side
   665,778x = 2,120,247,595,449
5. Step 5: Solve for x
   x = 2,120,247,595,449/665,778
6. Step 6: Final answer
   x = 3,184,616.49