Finding the Third Proportional to 363,018 and 789,018

Step by Step Solution

1. Step 1: Write the proportion equation
   363,018 : 789,018 = 789,018 : x
2. Step 2: Convert to fraction form
   363,018/789,018 = 789,018/x
3. Step 3: Cross multiply
   363,018x = 789,018 × 789,018
4. Step 4: Simplify right side
   363,018x = 622,549,404,324
5. Step 5: Solve for x
   x = 622,549,404,324/363,018
6. Step 6: Final answer
   x = 1,714,927.10