Finding the Third Proportional to 12,655.03 and 19,645.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,655.03 : 19,645.78 = 19,645.78 : x
2. Step 2: Convert to fraction form
   12,655.03/19,645.78 = 19,645.78/x
3. Step 3: Cross multiply
   12,655.03x = 19,645.78 × 19,645.78
4. Step 4: Simplify right side
   12,655.03x = 385,956,720.92
5. Step 5: Solve for x
   x = 385,956,720.92/12,655.03
6. Step 6: Final answer
   x = 30,498.28