Finding the Third Proportional to 554,203 and 1,191,286

Step by Step Solution

1. Step 1: Write the proportion equation
   554,203 : 1,191,286 = 1,191,286 : x
2. Step 2: Convert to fraction form
   554,203/1,191,286 = 1,191,286/x
3. Step 3: Cross multiply
   554,203x = 1,191,286 × 1,191,286
4. Step 4: Simplify right side
   554,203x = 1,419,162,333,796
5. Step 5: Solve for x
   x = 1,419,162,333,796/554,203
6. Step 6: Final answer
   x = 2,560,726.55