Finding the Third Proportional to 561,482 and 863,910

Step by Step Solution

1. Step 1: Write the proportion equation
   561,482 : 863,910 = 863,910 : x
2. Step 2: Convert to fraction form
   561,482/863,910 = 863,910/x
3. Step 3: Cross multiply
   561,482x = 863,910 × 863,910
4. Step 4: Simplify right side
   561,482x = 746,340,488,100
5. Step 5: Solve for x
   x = 746,340,488,100/561,482
6. Step 6: Final answer
   x = 1,329,233.15