Finding the Third Proportional to 455,011 and 978,711

Step by Step Solution

1. Step 1: Write the proportion equation
   455,011 : 978,711 = 978,711 : x
2. Step 2: Convert to fraction form
   455,011/978,711 = 978,711/x
3. Step 3: Cross multiply
   455,011x = 978,711 × 978,711
4. Step 4: Simplify right side
   455,011x = 957,875,221,521
5. Step 5: Solve for x
   x = 957,875,221,521/455,011
6. Step 6: Final answer
   x = 2,105,169.37