Finding the Third Proportional to 1,398,623 and 3,091,303

Step by Step Solution

1. Step 1: Write the proportion equation
   1,398,623 : 3,091,303 = 3,091,303 : x
2. Step 2: Convert to fraction form
   1,398,623/3,091,303 = 3,091,303/x
3. Step 3: Cross multiply
   1,398,623x = 3,091,303 × 3,091,303
4. Step 4: Simplify right side
   1,398,623x = 9,556,154,237,809
5. Step 5: Solve for x
   x = 9,556,154,237,809/1,398,623
6. Step 6: Final answer
   x = 6,832,544.75