Finding the Third Proportional to 1,431,507 and 3,120,228

Step by Step Solution

1. Step 1: Write the proportion equation
   1,431,507 : 3,120,228 = 3,120,228 : x
2. Step 2: Convert to fraction form
   1,431,507/3,120,228 = 3,120,228/x
3. Step 3: Cross multiply
   1,431,507x = 3,120,228 × 3,120,228
4. Step 4: Simplify right side
   1,431,507x = 9,735,822,771,984
5. Step 5: Solve for x
   x = 9,735,822,771,984/1,431,507
6. Step 6: Final answer
   x = 6,801,100.36