Finding the Third Proportional to 434,002 and 671,942

Step by Step Solution

1. Step 1: Write the proportion equation
   434,002 : 671,942 = 671,942 : x
2. Step 2: Convert to fraction form
   434,002/671,942 = 671,942/x
3. Step 3: Cross multiply
   434,002x = 671,942 × 671,942
4. Step 4: Simplify right side
   434,002x = 451,506,051,364
5. Step 5: Solve for x
   x = 451,506,051,364/434,002
6. Step 6: Final answer
   x = 1,040,331.73