Finding the Third Proportional to 12,934.69 and 19,779.19

Step by Step Solution

1. Step 1: Write the proportion equation
   12,934.69 : 19,779.19 = 19,779.19 : x
2. Step 2: Convert to fraction form
   12,934.69/19,779.19 = 19,779.19/x
3. Step 3: Cross multiply
   12,934.69x = 19,779.19 × 19,779.19
4. Step 4: Simplify right side
   12,934.69x = 391,216,258.16
5. Step 5: Solve for x
   x = 391,216,258.16/12,934.69
6. Step 6: Final answer
   x = 30,245.51