Finding the Third Proportional to 12,220 and 19,059.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,220 : 19,059.50 = 19,059.50 : x
2. Step 2: Convert to fraction form
   12,220/19,059.50 = 19,059.50/x
3. Step 3: Cross multiply
   12,220x = 19,059.50 × 19,059.50
4. Step 4: Simplify right side
   12,220x = 363,264,540.25
5. Step 5: Solve for x
   x = 363,264,540.25/12,220
6. Step 6: Final answer
   x = 29,727.05