Finding the Third Proportional to 610,779 and 1,329,990

Step by Step Solution

1. Step 1: Write the proportion equation
   610,779 : 1,329,990 = 1,329,990 : x
2. Step 2: Convert to fraction form
   610,779/1,329,990 = 1,329,990/x
3. Step 3: Cross multiply
   610,779x = 1,329,990 × 1,329,990
4. Step 4: Simplify right side
   610,779x = 1,768,873,400,100
5. Step 5: Solve for x
   x = 1,768,873,400,100/610,779
6. Step 6: Final answer
   x = 2,896,094.00