Finding the Third Proportional to 1,391,664 and 2,150,352

Step by Step Solution

1. Step 1: Write the proportion equation
   1,391,664 : 2,150,352 = 2,150,352 : x
2. Step 2: Convert to fraction form
   1,391,664/2,150,352 = 2,150,352/x
3. Step 3: Cross multiply
   1,391,664x = 2,150,352 × 2,150,352
4. Step 4: Simplify right side
   1,391,664x = 4,624,013,723,904
5. Step 5: Solve for x
   x = 4,624,013,723,904/1,391,664
6. Step 6: Final answer
   x = 3,322,650.96