Finding the Third Proportional to 1,339,890 and 2,920,692

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339,890 : 2,920,692 = 2,920,692 : x
2. Step 2: Convert to fraction form
   1,339,890/2,920,692 = 2,920,692/x
3. Step 3: Cross multiply
   1,339,890x = 2,920,692 × 2,920,692
4. Step 4: Simplify right side
   1,339,890x = 8,530,441,758,864
5. Step 5: Solve for x
   x = 8,530,441,758,864/1,339,890
6. Step 6: Final answer
   x = 6,366,523.94