Finding the Third Proportional to 1,986,858 and 3,147,471

Step by Step Solution

1. Step 1: Write the proportion equation
   1,986,858 : 3,147,471 = 3,147,471 : x
2. Step 2: Convert to fraction form
   1,986,858/3,147,471 = 3,147,471/x
3. Step 3: Cross multiply
   1,986,858x = 3,147,471 × 3,147,471
4. Step 4: Simplify right side
   1,986,858x = 9,906,573,695,841
5. Step 5: Solve for x
   x = 9,906,573,695,841/1,986,858
6. Step 6: Final answer
   x = 4,986,050.18