Finding the Third Proportional to 1,278,590 and 1,985,118

Step by Step Solution

1. Step 1: Write the proportion equation
   1,278,590 : 1,985,118 = 1,985,118 : x
2. Step 2: Convert to fraction form
   1,278,590/1,985,118 = 1,985,118/x
3. Step 3: Cross multiply
   1,278,590x = 1,985,118 × 1,985,118
4. Step 4: Simplify right side
   1,278,590x = 3,940,693,473,924
5. Step 5: Solve for x
   x = 3,940,693,473,924/1,278,590
6. Step 6: Final answer
   x = 3,082,061.86