Finding the Third Proportional to 626,290 and 1,396,012

Step by Step Solution

1. Step 1: Write the proportion equation
   626,290 : 1,396,012 = 1,396,012 : x
2. Step 2: Convert to fraction form
   626,290/1,396,012 = 1,396,012/x
3. Step 3: Cross multiply
   626,290x = 1,396,012 × 1,396,012
4. Step 4: Simplify right side
   626,290x = 1,948,849,504,144
5. Step 5: Solve for x
   x = 1,948,849,504,144/626,290
6. Step 6: Final answer
   x = 3,111,736.58