Finding the Third Proportional to 455,863 and 978,186

Step by Step Solution

1. Step 1: Write the proportion equation
   455,863 : 978,186 = 978,186 : x
2. Step 2: Convert to fraction form
   455,863/978,186 = 978,186/x
3. Step 3: Cross multiply
   455,863x = 978,186 × 978,186
4. Step 4: Simplify right side
   455,863x = 956,847,850,596
5. Step 5: Solve for x
   x = 956,847,850,596/455,863
6. Step 6: Final answer
   x = 2,098,981.16