Finding the Third Proportional to 1,265.39 and 2,779.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,265.39 : 2,779.83 = 2,779.83 : x
2. Step 2: Convert to fraction form
   1,265.39/2,779.83 = 2,779.83/x
3. Step 3: Cross multiply
   1,265.39x = 2,779.83 × 2,779.83
4. Step 4: Simplify right side
   1,265.39x = 7,727,444.40
5. Step 5: Solve for x
   x = 7,727,444.40/1,265.39
6. Step 6: Final answer
   x = 6,106.77