Finding the Third Proportional to 981,644 and 2,140,676

Step by Step Solution

1. Step 1: Write the proportion equation
   981,644 : 2,140,676 = 2,140,676 : x
2. Step 2: Convert to fraction form
   981,644/2,140,676 = 2,140,676/x
3. Step 3: Cross multiply
   981,644x = 2,140,676 × 2,140,676
4. Step 4: Simplify right side
   981,644x = 4,582,493,736,976
5. Step 5: Solve for x
   x = 4,582,493,736,976/981,644
6. Step 6: Final answer
   x = 4,668,182.90