Finding the Third Proportional to 1,070,513 and 1,639,676

Step by Step Solution

1. Step 1: Write the proportion equation
   1,070,513 : 1,639,676 = 1,639,676 : x
2. Step 2: Convert to fraction form
   1,070,513/1,639,676 = 1,639,676/x
3. Step 3: Cross multiply
   1,070,513x = 1,639,676 × 1,639,676
4. Step 4: Simplify right side
   1,070,513x = 2,688,537,384,976
5. Step 5: Solve for x
   x = 2,688,537,384,976/1,070,513
6. Step 6: Final answer
   x = 2,511,447.68