Finding the Third Proportional to 991,291 and 2,110,454

Step by Step Solution

1. Step 1: Write the proportion equation
   991,291 : 2,110,454 = 2,110,454 : x
2. Step 2: Convert to fraction form
   991,291/2,110,454 = 2,110,454/x
3. Step 3: Cross multiply
   991,291x = 2,110,454 × 2,110,454
4. Step 4: Simplify right side
   991,291x = 4,454,016,086,116
5. Step 5: Solve for x
   x = 4,454,016,086,116/991,291
6. Step 6: Final answer
   x = 4,493,146.90