Finding the Third Proportional to 728,686 and 1,018,982

Step by Step Solution

1. Step 1: Write the proportion equation
   728,686 : 1,018,982 = 1,018,982 : x
2. Step 2: Convert to fraction form
   728,686/1,018,982 = 1,018,982/x
3. Step 3: Cross multiply
   728,686x = 1,018,982 × 1,018,982
4. Step 4: Simplify right side
   728,686x = 1,038,324,316,324
5. Step 5: Solve for x
   x = 1,038,324,316,324/728,686
6. Step 6: Final answer
   x = 1,424,926.95