Finding the Third Proportional to 725,228 and 1,019,478

Step by Step Solution

1. Step 1: Write the proportion equation
   725,228 : 1,019,478 = 1,019,478 : x
2. Step 2: Convert to fraction form
   725,228/1,019,478 = 1,019,478/x
3. Step 3: Cross multiply
   725,228x = 1,019,478 × 1,019,478
4. Step 4: Simplify right side
   725,228x = 1,039,335,392,484
5. Step 5: Solve for x
   x = 1,039,335,392,484/725,228
6. Step 6: Final answer
   x = 1,433,115.37