Finding the Third Proportional to 455,874 and 978,208

Step by Step Solution

1. Step 1: Write the proportion equation
   455,874 : 978,208 = 978,208 : x
2. Step 2: Convert to fraction form
   455,874/978,208 = 978,208/x
3. Step 3: Cross multiply
   455,874x = 978,208 × 978,208
4. Step 4: Simplify right side
   455,874x = 956,890,891,264
5. Step 5: Solve for x
   x = 956,890,891,264/455,874
6. Step 6: Final answer
   x = 2,099,024.93