Finding the Third Proportional to 1,242.84 and 2,505.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,242.84 : 2,505.94 = 2,505.94 : x
2. Step 2: Convert to fraction form
   1,242.84/2,505.94 = 2,505.94/x
3. Step 3: Cross multiply
   1,242.84x = 2,505.94 × 2,505.94
4. Step 4: Simplify right side
   1,242.84x = 6,279,722.75
5. Step 5: Solve for x
   x = 6,279,722.75/1,242.84
6. Step 6: Final answer
   x = 5,052.70