Finding the Third Proportional to 5,510 and 7,486.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,510 : 7,486.50 = 7,486.50 : x
2. Step 2: Convert to fraction form
   5,510/7,486.50 = 7,486.50/x
3. Step 3: Cross multiply
   5,510x = 7,486.50 × 7,486.50
4. Step 4: Simplify right side
   5,510x = 56,047,682.25
5. Step 5: Solve for x
   x = 56,047,682.25/5,510
6. Step 6: Final answer
   x = 10,171.99