Finding the Third Proportional to 12,708 and 19,225.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,708 : 19,225.50 = 19,225.50 : x
2. Step 2: Convert to fraction form
   12,708/19,225.50 = 19,225.50/x
3. Step 3: Cross multiply
   12,708x = 19,225.50 × 19,225.50
4. Step 4: Simplify right side
   12,708x = 369,619,850.25
5. Step 5: Solve for x
   x = 369,619,850.25/12,708
6. Step 6: Final answer
   x = 29,085.60