Finding the Third Proportional to 981,515 and 2,117,686

Step by Step Solution

1. Step 1: Write the proportion equation
   981,515 : 2,117,686 = 2,117,686 : x
2. Step 2: Convert to fraction form
   981,515/2,117,686 = 2,117,686/x
3. Step 3: Cross multiply
   981,515x = 2,117,686 × 2,117,686
4. Step 4: Simplify right side
   981,515x = 4,484,593,994,596
5. Step 5: Solve for x
   x = 4,484,593,994,596/981,515
6. Step 6: Final answer
   x = 4,569,052.94