Finding the Third Proportional to 1,389,713 and 2,076,386

Step by Step Solution

1. Step 1: Write the proportion equation
   1,389,713 : 2,076,386 = 2,076,386 : x
2. Step 2: Convert to fraction form
   1,389,713/2,076,386 = 2,076,386/x
3. Step 3: Cross multiply
   1,389,713x = 2,076,386 × 2,076,386
4. Step 4: Simplify right side
   1,389,713x = 4,311,378,820,996
5. Step 5: Solve for x
   x = 4,311,378,820,996/1,389,713
6. Step 6: Final answer
   x = 3,102,351.94