Finding the Third Proportional to 774,396 and 1,660,890

Step by Step Solution

1. Step 1: Write the proportion equation
   774,396 : 1,660,890 = 1,660,890 : x
2. Step 2: Convert to fraction form
   774,396/1,660,890 = 1,660,890/x
3. Step 3: Cross multiply
   774,396x = 1,660,890 × 1,660,890
4. Step 4: Simplify right side
   774,396x = 2,758,555,592,100
5. Step 5: Solve for x
   x = 2,758,555,592,100/774,396
6. Step 6: Final answer
   x = 3,562,202.79