Finding the Third Proportional to 7,677.28 and 12,222.14

Step by Step Solution

1. Step 1: Write the proportion equation
   7,677.28 : 12,222.14 = 12,222.14 : x
2. Step 2: Convert to fraction form
   7,677.28/12,222.14 = 12,222.14/x
3. Step 3: Cross multiply
   7,677.28x = 12,222.14 × 12,222.14
4. Step 4: Simplify right side
   7,677.28x = 149,380,721.46
5. Step 5: Solve for x
   x = 149,380,721.46/7,677.28
6. Step 6: Final answer
   x = 19,457.50