Finding the Third Proportional to 1,389,673 and 2,076,330

Step by Step Solution

1. Step 1: Write the proportion equation
   1,389,673 : 2,076,330 = 2,076,330 : x
2. Step 2: Convert to fraction form
   1,389,673/2,076,330 = 2,076,330/x
3. Step 3: Cross multiply
   1,389,673x = 2,076,330 × 2,076,330
4. Step 4: Simplify right side
   1,389,673x = 4,311,146,268,900
5. Step 5: Solve for x
   x = 4,311,146,268,900/1,389,673
6. Step 6: Final answer
   x = 3,102,273.89