Finding the Third Proportional to 12,679.88 and 19,404.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,679.88 : 19,404.56 = 19,404.56 : x
2. Step 2: Convert to fraction form
   12,679.88/19,404.56 = 19,404.56/x
3. Step 3: Cross multiply
   12,679.88x = 19,404.56 × 19,404.56
4. Step 4: Simplify right side
   12,679.88x = 376,537,045.82
5. Step 5: Solve for x
   x = 376,537,045.82/12,679.88
6. Step 6: Final answer
   x = 29,695.64