Finding the Third Proportional to 2,666,766 and 4,236,345

Step by Step Solution

1. Step 1: Write the proportion equation
   2,666,766 : 4,236,345 = 4,236,345 : x
2. Step 2: Convert to fraction form
   2,666,766/4,236,345 = 4,236,345/x
3. Step 3: Cross multiply
   2,666,766x = 4,236,345 × 4,236,345
4. Step 4: Simplify right side
   2,666,766x = 17,946,618,959,025
5. Step 5: Solve for x
   x = 17,946,618,959,025/2,666,766
6. Step 6: Final answer
   x = 6,729,731.43