Finding the Third Proportional to 644,586 and 1,366,010

Step by Step Solution

1. Step 1: Write the proportion equation
   644,586 : 1,366,010 = 1,366,010 : x
2. Step 2: Convert to fraction form
   644,586/1,366,010 = 1,366,010/x
3. Step 3: Cross multiply
   644,586x = 1,366,010 × 1,366,010
4. Step 4: Simplify right side
   644,586x = 1,865,983,320,100
5. Step 5: Solve for x
   x = 1,865,983,320,100/644,586
6. Step 6: Final answer
   x = 2,894,855.49