Finding the Third Proportional to 911,988 and 1,979,739

Step by Step Solution

1. Step 1: Write the proportion equation
   911,988 : 1,979,739 = 1,979,739 : x
2. Step 2: Convert to fraction form
   911,988/1,979,739 = 1,979,739/x
3. Step 3: Cross multiply
   911,988x = 1,979,739 × 1,979,739
4. Step 4: Simplify right side
   911,988x = 3,919,366,508,121
5. Step 5: Solve for x
   x = 3,919,366,508,121/911,988
6. Step 6: Final answer
   x = 4,297,607.54