Finding the Third Proportional to 2,286,786 and 4,515,738

Step by Step Solution

1. Step 1: Write the proportion equation
   2,286,786 : 4,515,738 = 4,515,738 : x
2. Step 2: Convert to fraction form
   2,286,786/4,515,738 = 4,515,738/x
3. Step 3: Cross multiply
   2,286,786x = 4,515,738 × 4,515,738
4. Step 4: Simplify right side
   2,286,786x = 20,391,889,684,644
5. Step 5: Solve for x
   x = 20,391,889,684,644/2,286,786
6. Step 6: Final answer
   x = 8,917,270.65