Finding the Third Proportional to 2,786,720 and 4,306,890

Step by Step Solution

1. Step 1: Write the proportion equation
   2,786,720 : 4,306,890 = 4,306,890 : x
2. Step 2: Convert to fraction form
   2,786,720/4,306,890 = 4,306,890/x
3. Step 3: Cross multiply
   2,786,720x = 4,306,890 × 4,306,890
4. Step 4: Simplify right side
   2,786,720x = 18,549,301,472,100
5. Step 5: Solve for x
   x = 18,549,301,472,100/2,786,720
6. Step 6: Final answer
   x = 6,656,320.50