Finding the Third Proportional to 1,311,658 and 1,929,979

Step by Step Solution

1. Step 1: Write the proportion equation
   1,311,658 : 1,929,979 = 1,929,979 : x
2. Step 2: Convert to fraction form
   1,311,658/1,929,979 = 1,929,979/x
3. Step 3: Cross multiply
   1,311,658x = 1,929,979 × 1,929,979
4. Step 4: Simplify right side
   1,311,658x = 3,724,818,940,441
5. Step 5: Solve for x
   x = 3,724,818,940,441/1,311,658
6. Step 6: Final answer
   x = 2,839,779.07