Finding the Third Proportional to 612,072 and 1,325,780

Step by Step Solution

1. Step 1: Write the proportion equation
   612,072 : 1,325,780 = 1,325,780 : x
2. Step 2: Convert to fraction form
   612,072/1,325,780 = 1,325,780/x
3. Step 3: Cross multiply
   612,072x = 1,325,780 × 1,325,780
4. Step 4: Simplify right side
   612,072x = 1,757,692,608,400
5. Step 5: Solve for x
   x = 1,757,692,608,400/612,072
6. Step 6: Final answer
   x = 2,871,708.90