Finding the Third Proportional to 1,939.88 and 2,742.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,939.88 : 2,742.75 = 2,742.75 : x
2. Step 2: Convert to fraction form
   1,939.88/2,742.75 = 2,742.75/x
3. Step 3: Cross multiply
   1,939.88x = 2,742.75 × 2,742.75
4. Step 4: Simplify right side
   1,939.88x = 7,522,677.56
5. Step 5: Solve for x
   x = 7,522,677.56/1,939.88
6. Step 6: Final answer
   x = 3,877.92