Finding the Third Proportional to 622,933 and 978,669

Step by Step Solution

1. Step 1: Write the proportion equation
   622,933 : 978,669 = 978,669 : x
2. Step 2: Convert to fraction form
   622,933/978,669 = 978,669/x
3. Step 3: Cross multiply
   622,933x = 978,669 × 978,669
4. Step 4: Simplify right side
   622,933x = 957,793,011,561
5. Step 5: Solve for x
   x = 957,793,011,561/622,933
6. Step 6: Final answer
   x = 1,537,553.82