Finding the Third Proportional to 911,786 and 2,110,620

Step by Step Solution

1. Step 1: Write the proportion equation
   911,786 : 2,110,620 = 2,110,620 : x
2. Step 2: Convert to fraction form
   911,786/2,110,620 = 2,110,620/x
3. Step 3: Cross multiply
   911,786x = 2,110,620 × 2,110,620
4. Step 4: Simplify right side
   911,786x = 4,454,716,784,400
5. Step 5: Solve for x
   x = 4,454,716,784,400/911,786
6. Step 6: Final answer
   x = 4,885,704.30