Finding the Third Proportional to 672,000 and 1,040,616

Step by Step Solution

1. Step 1: Write the proportion equation
   672,000 : 1,040,616 = 1,040,616 : x
2. Step 2: Convert to fraction form
   672,000/1,040,616 = 1,040,616/x
3. Step 3: Cross multiply
   672,000x = 1,040,616 × 1,040,616
4. Step 4: Simplify right side
   672,000x = 1,082,881,659,456
5. Step 5: Solve for x
   x = 1,082,881,659,456/672,000
6. Step 6: Final answer
   x = 1,611,431.04