Finding the Third Proportional to 839,108 and 1,258,374

Step by Step Solution

1. Step 1: Write the proportion equation
   839,108 : 1,258,374 = 1,258,374 : x
2. Step 2: Convert to fraction form
   839,108/1,258,374 = 1,258,374/x
3. Step 3: Cross multiply
   839,108x = 1,258,374 × 1,258,374
4. Step 4: Simplify right side
   839,108x = 1,583,505,123,876
5. Step 5: Solve for x
   x = 1,583,505,123,876/839,108
6. Step 6: Final answer
   x = 1,887,129.10