Finding the Third Proportional to 2,886.50 and 3,918.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,886.50 : 3,918.50 = 3,918.50 : x
2. Step 2: Convert to fraction form
   2,886.50/3,918.50 = 3,918.50/x
3. Step 3: Cross multiply
   2,886.50x = 3,918.50 × 3,918.50
4. Step 4: Simplify right side
   2,886.50x = 15,354,642.25
5. Step 5: Solve for x
   x = 15,354,642.25/2,886.50
6. Step 6: Final answer
   x = 5,319.47