Finding the Third Proportional to 501,972 and 978,724

Step by Step Solution

1. Step 1: Write the proportion equation
   501,972 : 978,724 = 978,724 : x
2. Step 2: Convert to fraction form
   501,972/978,724 = 978,724/x
3. Step 3: Cross multiply
   501,972x = 978,724 × 978,724
4. Step 4: Simplify right side
   501,972x = 957,900,668,176
5. Step 5: Solve for x
   x = 957,900,668,176/501,972
6. Step 6: Final answer
   x = 1,908,275.10