Finding the Third Proportional to 11,032.50 and 12,679.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,032.50 : 12,679.50 = 12,679.50 : x
2. Step 2: Convert to fraction form
   11,032.50/12,679.50 = 12,679.50/x
3. Step 3: Cross multiply
   11,032.50x = 12,679.50 × 12,679.50
4. Step 4: Simplify right side
   11,032.50x = 160,769,720.25
5. Step 5: Solve for x
   x = 160,769,720.25/11,032.50
6. Step 6: Final answer
   x = 14,572.37