Finding the Third Proportional to 1,076,976 and 1,689,604

Step by Step Solution

1. Step 1: Write the proportion equation
   1,076,976 : 1,689,604 = 1,689,604 : x
2. Step 2: Convert to fraction form
   1,076,976/1,689,604 = 1,689,604/x
3. Step 3: Cross multiply
   1,076,976x = 1,689,604 × 1,689,604
4. Step 4: Simplify right side
   1,076,976x = 2,854,761,676,816
5. Step 5: Solve for x
   x = 2,854,761,676,816/1,076,976
6. Step 6: Final answer
   x = 2,650,719.86