Finding the Third Proportional to 1,431,347 and 3,086,878

Step by Step Solution

1. Step 1: Write the proportion equation
   1,431,347 : 3,086,878 = 3,086,878 : x
2. Step 2: Convert to fraction form
   1,431,347/3,086,878 = 3,086,878/x
3. Step 3: Cross multiply
   1,431,347x = 3,086,878 × 3,086,878
4. Step 4: Simplify right side
   1,431,347x = 9,528,815,786,884
5. Step 5: Solve for x
   x = 9,528,815,786,884/1,431,347
6. Step 6: Final answer
   x = 6,657,236.71