Finding the Third Proportional to 648,869 and 1,008,215

Step by Step Solution

1. Step 1: Write the proportion equation
   648,869 : 1,008,215 = 1,008,215 : x
2. Step 2: Convert to fraction form
   648,869/1,008,215 = 1,008,215/x
3. Step 3: Cross multiply
   648,869x = 1,008,215 × 1,008,215
4. Step 4: Simplify right side
   648,869x = 1,016,497,486,225
5. Step 5: Solve for x
   x = 1,016,497,486,225/648,869
6. Step 6: Final answer
   x = 1,566,568.12