Finding the Third Proportional to 3,940,274 and 5,989,863

Step by Step Solution

1. Step 1: Write the proportion equation
   3,940,274 : 5,989,863 = 5,989,863 : x
2. Step 2: Convert to fraction form
   3,940,274/5,989,863 = 5,989,863/x
3. Step 3: Cross multiply
   3,940,274x = 5,989,863 × 5,989,863
4. Step 4: Simplify right side
   3,940,274x = 35,878,458,758,769
5. Step 5: Solve for x
   x = 35,878,458,758,769/3,940,274
6. Step 6: Final answer
   x = 9,105,574.58