Finding the Third Proportional to 442,722 and 978,472

Step by Step Solution

1. Step 1: Write the proportion equation
   442,722 : 978,472 = 978,472 : x
2. Step 2: Convert to fraction form
   442,722/978,472 = 978,472/x
3. Step 3: Cross multiply
   442,722x = 978,472 × 978,472
4. Step 4: Simplify right side
   442,722x = 957,407,454,784
5. Step 5: Solve for x
   x = 957,407,454,784/442,722
6. Step 6: Final answer
   x = 2,162,547.73