Finding the Third Proportional to 1,959,630 and 3,997,989

Step by Step Solution

1. Step 1: Write the proportion equation
   1,959,630 : 3,997,989 = 3,997,989 : x
2. Step 2: Convert to fraction form
   1,959,630/3,997,989 = 3,997,989/x
3. Step 3: Cross multiply
   1,959,630x = 3,997,989 × 3,997,989
4. Step 4: Simplify right side
   1,959,630x = 15,983,916,044,121
5. Step 5: Solve for x
   x = 15,983,916,044,121/1,959,630
6. Step 6: Final answer
   x = 8,156,598.97