Finding the Third Proportional to 1,439,720 and 3,150,600

Step by Step Solution

1. Step 1: Write the proportion equation
   1,439,720 : 3,150,600 = 3,150,600 : x
2. Step 2: Convert to fraction form
   1,439,720/3,150,600 = 3,150,600/x
3. Step 3: Cross multiply
   1,439,720x = 3,150,600 × 3,150,600
4. Step 4: Simplify right side
   1,439,720x = 9,926,280,360,000
5. Step 5: Solve for x
   x = 9,926,280,360,000/1,439,720
6. Step 6: Final answer
   x = 6,894,590.86