Finding the Third Proportional to 1,011,623 and 2,116,768

Step by Step Solution

1. Step 1: Write the proportion equation
   1,011,623 : 2,116,768 = 2,116,768 : x
2. Step 2: Convert to fraction form
   1,011,623/2,116,768 = 2,116,768/x
3. Step 3: Cross multiply
   1,011,623x = 2,116,768 × 2,116,768
4. Step 4: Simplify right side
   1,011,623x = 4,480,706,765,824
5. Step 5: Solve for x
   x = 4,480,706,765,824/1,011,623
6. Step 6: Final answer
   x = 4,429,225.87