Finding the Third Proportional to 694,728 and 1,039,158

Step by Step Solution

1. Step 1: Write the proportion equation
   694,728 : 1,039,158 = 1,039,158 : x
2. Step 2: Convert to fraction form
   694,728/1,039,158 = 1,039,158/x
3. Step 3: Cross multiply
   694,728x = 1,039,158 × 1,039,158
4. Step 4: Simplify right side
   694,728x = 1,079,849,348,964
5. Step 5: Solve for x
   x = 1,079,849,348,964/694,728
6. Step 6: Final answer
   x = 1,554,348.39