Finding the Third Proportional to 3,679,431 and 8,042,862

Step by Step Solution

1. Step 1: Write the proportion equation
   3,679,431 : 8,042,862 = 8,042,862 : x
2. Step 2: Convert to fraction form
   3,679,431/8,042,862 = 8,042,862/x
3. Step 3: Cross multiply
   3,679,431x = 8,042,862 × 8,042,862
4. Step 4: Simplify right side
   3,679,431x = 64,687,629,151,044
5. Step 5: Solve for x
   x = 64,687,629,151,044/3,679,431
6. Step 6: Final answer
   x = 17,580,878.44