Finding the Third Proportional to 611,920 and 1,325,516

Step by Step Solution

1. Step 1: Write the proportion equation
   611,920 : 1,325,516 = 1,325,516 : x
2. Step 2: Convert to fraction form
   611,920/1,325,516 = 1,325,516/x
3. Step 3: Cross multiply
   611,920x = 1,325,516 × 1,325,516
4. Step 4: Simplify right side
   611,920x = 1,756,992,666,256
5. Step 5: Solve for x
   x = 1,756,992,666,256/611,920
6. Step 6: Final answer
   x = 2,871,278.38