Finding the Third Proportional to 1,431,528 and 3,120,268

Step by Step Solution

1. Step 1: Write the proportion equation
   1,431,528 : 3,120,268 = 3,120,268 : x
2. Step 2: Convert to fraction form
   1,431,528/3,120,268 = 3,120,268/x
3. Step 3: Cross multiply
   1,431,528x = 3,120,268 × 3,120,268
4. Step 4: Simplify right side
   1,431,528x = 9,736,072,391,824
5. Step 5: Solve for x
   x = 9,736,072,391,824/1,431,528
6. Step 6: Final answer
   x = 6,801,174.96