Finding the Third Proportional to 779,722 and 1,620,740

Step by Step Solution

1. Step 1: Write the proportion equation
   779,722 : 1,620,740 = 1,620,740 : x
2. Step 2: Convert to fraction form
   779,722/1,620,740 = 1,620,740/x
3. Step 3: Cross multiply
   779,722x = 1,620,740 × 1,620,740
4. Step 4: Simplify right side
   779,722x = 2,626,798,147,600
5. Step 5: Solve for x
   x = 2,626,798,147,600/779,722
6. Step 6: Final answer
   x = 3,368,890.64