Finding the Third Proportional to 12,220.50 and 13,354.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,220.50 : 13,354.50 = 13,354.50 : x
2. Step 2: Convert to fraction form
   12,220.50/13,354.50 = 13,354.50/x
3. Step 3: Cross multiply
   12,220.50x = 13,354.50 × 13,354.50
4. Step 4: Simplify right side
   12,220.50x = 178,342,670.25
5. Step 5: Solve for x
   x = 178,342,670.25/12,220.50
6. Step 6: Final answer
   x = 14,593.73