Finding the Third Proportional to 1,011,631 and 2,116,786

Step by Step Solution

1. Step 1: Write the proportion equation
   1,011,631 : 2,116,786 = 2,116,786 : x
2. Step 2: Convert to fraction form
   1,011,631/2,116,786 = 2,116,786/x
3. Step 3: Cross multiply
   1,011,631x = 2,116,786 × 2,116,786
4. Step 4: Simplify right side
   1,011,631x = 4,480,782,969,796
5. Step 5: Solve for x
   x = 4,480,782,969,796/1,011,631
6. Step 6: Final answer
   x = 4,429,266.17