Finding the Third Proportional to 622,935 and 978,672

Step by Step Solution

1. Step 1: Write the proportion equation
   622,935 : 978,672 = 978,672 : x
2. Step 2: Convert to fraction form
   622,935/978,672 = 978,672/x
3. Step 3: Cross multiply
   622,935x = 978,672 × 978,672
4. Step 4: Simplify right side
   622,935x = 957,798,883,584
5. Step 5: Solve for x
   x = 957,798,883,584/622,935
6. Step 6: Final answer
   x = 1,537,558.31