Finding the Third Proportional to 12,217 and 19,055.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,217 : 19,055.50 = 19,055.50 : x
2. Step 2: Convert to fraction form
   12,217/19,055.50 = 19,055.50/x
3. Step 3: Cross multiply
   12,217x = 19,055.50 × 19,055.50
4. Step 4: Simplify right side
   12,217x = 363,112,080.25
5. Step 5: Solve for x
   x = 363,112,080.25/12,217
6. Step 6: Final answer
   x = 29,721.87