Finding the Third Proportional to 800,228 and 1,238,680

Step by Step Solution

1. Step 1: Write the proportion equation
   800,228 : 1,238,680 = 1,238,680 : x
2. Step 2: Convert to fraction form
   800,228/1,238,680 = 1,238,680/x
3. Step 3: Cross multiply
   800,228x = 1,238,680 × 1,238,680
4. Step 4: Simplify right side
   800,228x = 1,534,328,142,400
5. Step 5: Solve for x
   x = 1,534,328,142,400/800,228
6. Step 6: Final answer
   x = 1,917,363.73