Finding the Third Proportional to 1,438,616 and 2,111,268

Step by Step Solution

1. Step 1: Write the proportion equation
   1,438,616 : 2,111,268 = 2,111,268 : x
2. Step 2: Convert to fraction form
   1,438,616/2,111,268 = 2,111,268/x
3. Step 3: Cross multiply
   1,438,616x = 2,111,268 × 2,111,268
4. Step 4: Simplify right side
   1,438,616x = 4,457,452,567,824
5. Step 5: Solve for x
   x = 4,457,452,567,824/1,438,616
6. Step 6: Final answer
   x = 3,098,431.11