Finding the Third Proportional to 1,393,988 and 1,962,980

Step by Step Solution

1. Step 1: Write the proportion equation
   1,393,988 : 1,962,980 = 1,962,980 : x
2. Step 2: Convert to fraction form
   1,393,988/1,962,980 = 1,962,980/x
3. Step 3: Cross multiply
   1,393,988x = 1,962,980 × 1,962,980
4. Step 4: Simplify right side
   1,393,988x = 3,853,290,480,400
5. Step 5: Solve for x
   x = 3,853,290,480,400/1,393,988
6. Step 6: Final answer
   x = 2,764,220.70