Finding the Third Proportional to 911,988 and 1,979,738

Step by Step Solution

1. Step 1: Write the proportion equation
   911,988 : 1,979,738 = 1,979,738 : x
2. Step 2: Convert to fraction form
   911,988/1,979,738 = 1,979,738/x
3. Step 3: Cross multiply
   911,988x = 1,979,738 × 1,979,738
4. Step 4: Simplify right side
   911,988x = 3,919,362,548,644
5. Step 5: Solve for x
   x = 3,919,362,548,644/911,988
6. Step 6: Final answer
   x = 4,297,603.20