Finding the Third Proportional to 1,205,678 and 1,641,936

Step by Step Solution

1. Step 1: Write the proportion equation
   1,205,678 : 1,641,936 = 1,641,936 : x
2. Step 2: Convert to fraction form
   1,205,678/1,641,936 = 1,641,936/x
3. Step 3: Cross multiply
   1,205,678x = 1,641,936 × 1,641,936
4. Step 4: Simplify right side
   1,205,678x = 2,695,953,828,096
5. Step 5: Solve for x
   x = 2,695,953,828,096/1,205,678
6. Step 6: Final answer
   x = 2,236,047.96