Finding the Third Proportional to 644,998 and 1,008,045

Step by Step Solution

1. Step 1: Write the proportion equation
   644,998 : 1,008,045 = 1,008,045 : x
2. Step 2: Convert to fraction form
   644,998/1,008,045 = 1,008,045/x
3. Step 3: Cross multiply
   644,998x = 1,008,045 × 1,008,045
4. Step 4: Simplify right side
   644,998x = 1,016,154,722,025
5. Step 5: Solve for x
   x = 1,016,154,722,025/644,998
6. Step 6: Final answer
   x = 1,575,438.56