Finding the Third Proportional to 842,144.50 and 1,294,456

Step by Step Solution

1. Step 1: Write the proportion equation
   842,144.50 : 1,294,456 = 1,294,456 : x
2. Step 2: Convert to fraction form
   842,144.50/1,294,456 = 1,294,456/x
3. Step 3: Cross multiply
   842,144.50x = 1,294,456 × 1,294,456
4. Step 4: Simplify right side
   842,144.50x = 1,675,616,335,936
5. Step 5: Solve for x
   x = 1,675,616,335,936/842,144.50
6. Step 6: Final answer
   x = 1,989,701.69