Finding the Third Proportional to 981,511 and 2,117,678

Step by Step Solution

1. Step 1: Write the proportion equation
   981,511 : 2,117,678 = 2,117,678 : x
2. Step 2: Convert to fraction form
   981,511/2,117,678 = 2,117,678/x
3. Step 3: Cross multiply
   981,511x = 2,117,678 × 2,117,678
4. Step 4: Simplify right side
   981,511x = 4,484,560,111,684
5. Step 5: Solve for x
   x = 4,484,560,111,684/981,511
6. Step 6: Final answer
   x = 4,569,037.04