Finding the Third Proportional to 1,339,960 and 1,819,560

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339,960 : 1,819,560 = 1,819,560 : x
2. Step 2: Convert to fraction form
   1,339,960/1,819,560 = 1,819,560/x
3. Step 3: Cross multiply
   1,339,960x = 1,819,560 × 1,819,560
4. Step 4: Simplify right side
   1,339,960x = 3,310,798,593,600
5. Step 5: Solve for x
   x = 3,310,798,593,600/1,339,960
6. Step 6: Final answer
   x = 2,470,818.97