Finding the Third Proportional to 12,457.50 and 19,308.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,457.50 : 19,308.94 = 19,308.94 : x
2. Step 2: Convert to fraction form
   12,457.50/19,308.94 = 19,308.94/x
3. Step 3: Cross multiply
   12,457.50x = 19,308.94 × 19,308.94
4. Step 4: Simplify right side
   12,457.50x = 372,835,067.38
5. Step 5: Solve for x
   x = 372,835,067.38/12,457.50
6. Step 6: Final answer
   x = 29,928.56