Finding the Third Proportional to 3,116 and 7,281.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,116 : 7,281.50 = 7,281.50 : x
2. Step 2: Convert to fraction form
   3,116/7,281.50 = 7,281.50/x
3. Step 3: Cross multiply
   3,116x = 7,281.50 × 7,281.50
4. Step 4: Simplify right side
   3,116x = 53,020,242.25
5. Step 5: Solve for x
   x = 53,020,242.25/3,116
6. Step 6: Final answer
   x = 17,015.48