Finding the Third Proportional to 1,431,540 and 3,087,360

Step by Step Solution

1. Step 1: Write the proportion equation
   1,431,540 : 3,087,360 = 3,087,360 : x
2. Step 2: Convert to fraction form
   1,431,540/3,087,360 = 3,087,360/x
3. Step 3: Cross multiply
   1,431,540x = 3,087,360 × 3,087,360
4. Step 4: Simplify right side
   1,431,540x = 9,531,791,769,600
5. Step 5: Solve for x
   x = 9,531,791,769,600/1,431,540
6. Step 6: Final answer
   x = 6,658,418.05