Finding the Third Proportional to 12,729.38 and 27,919.13

Step by Step Solution

1. Step 1: Write the proportion equation
   12,729.38 : 27,919.13 = 27,919.13 : x
2. Step 2: Convert to fraction form
   12,729.38/27,919.13 = 27,919.13/x
3. Step 3: Cross multiply
   12,729.38x = 27,919.13 × 27,919.13
4. Step 4: Simplify right side
   12,729.38x = 779,477,540.77
5. Step 5: Solve for x
   x = 779,477,540.77/12,729.38
6. Step 6: Final answer
   x = 61,234.55