Finding the Third Proportional to 866.50 and 1,898

Step by Step Solution

1. Step 1: Write the proportion equation
   866.50 : 1,898 = 1,898 : x
2. Step 2: Convert to fraction form
   866.50/1,898 = 1,898/x
3. Step 3: Cross multiply
   866.50x = 1,898 × 1,898
4. Step 4: Simplify right side
   866.50x = 3,602,404
5. Step 5: Solve for x
   x = 3,602,404/866.50
6. Step 6: Final answer
   x = 4,157.42