Finding the Third Proportional to 641,996 and 1,366,936

Step by Step Solution

1. Step 1: Write the proportion equation
   641,996 : 1,366,936 = 1,366,936 : x
2. Step 2: Convert to fraction form
   641,996/1,366,936 = 1,366,936/x
3. Step 3: Cross multiply
   641,996x = 1,366,936 × 1,366,936
4. Step 4: Simplify right side
   641,996x = 1,868,514,028,096
5. Step 5: Solve for x
   x = 1,868,514,028,096/641,996
6. Step 6: Final answer
   x = 2,910,476.12