Finding the Third Proportional to 1,356.75 and 2,779.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356.75 : 2,779.88 = 2,779.88 : x
2. Step 2: Convert to fraction form
   1,356.75/2,779.88 = 2,779.88/x
3. Step 3: Cross multiply
   1,356.75x = 2,779.88 × 2,779.88
4. Step 4: Simplify right side
   1,356.75x = 7,727,705.02
5. Step 5: Solve for x
   x = 7,727,705.02/1,356.75
6. Step 6: Final answer
   x = 5,695.75