Finding the Third Proportional to 1,216.50 and 1,860.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,216.50 : 1,860.38 = 1,860.38 : x
2. Step 2: Convert to fraction form
   1,216.50/1,860.38 = 1,860.38/x
3. Step 3: Cross multiply
   1,216.50x = 1,860.38 × 1,860.38
4. Step 4: Simplify right side
   1,216.50x = 3,460,995.14
5. Step 5: Solve for x
   x = 3,460,995.14/1,216.50
6. Step 6: Final answer
   x = 2,845.04