Finding the Third Proportional to 663,205 and 1,420,960

Step by Step Solution

1. Step 1: Write the proportion equation
   663,205 : 1,420,960 = 1,420,960 : x
2. Step 2: Convert to fraction form
   663,205/1,420,960 = 1,420,960/x
3. Step 3: Cross multiply
   663,205x = 1,420,960 × 1,420,960
4. Step 4: Simplify right side
   663,205x = 2,019,127,321,600
5. Step 5: Solve for x
   x = 2,019,127,321,600/663,205
6. Step 6: Final answer
   x = 3,044,499.55