Finding the Third Proportional to 1,211,990 and 1,794,558

Step by Step Solution

1. Step 1: Write the proportion equation
   1,211,990 : 1,794,558 = 1,794,558 : x
2. Step 2: Convert to fraction form
   1,211,990/1,794,558 = 1,794,558/x
3. Step 3: Cross multiply
   1,211,990x = 1,794,558 × 1,794,558
4. Step 4: Simplify right side
   1,211,990x = 3,220,438,415,364
5. Step 5: Solve for x
   x = 3,220,438,415,364/1,211,990
6. Step 6: Final answer
   x = 2,657,149.33