Finding the Third Proportional to 849.55 and 1,871.55

Step by Step Solution

1. Step 1: Write the proportion equation
   849.55 : 1,871.55 = 1,871.55 : x
2. Step 2: Convert to fraction form
   849.55/1,871.55 = 1,871.55/x
3. Step 3: Cross multiply
   849.55x = 1,871.55 × 1,871.55
4. Step 4: Simplify right side
   849.55x = 3,502,716.95
5. Step 5: Solve for x
   x = 3,502,716.95/849.55
6. Step 6: Final answer
   x = 4,123.02