Finding the Third Proportional to 12,620.81 and 19,596.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,620.81 : 19,596.94 = 19,596.94 : x
2. Step 2: Convert to fraction form
   12,620.81/19,596.94 = 19,596.94/x
3. Step 3: Cross multiply
   12,620.81x = 19,596.94 × 19,596.94
4. Step 4: Simplify right side
   12,620.81x = 384,039,959.38
5. Step 5: Solve for x
   x = 384,039,959.38/12,620.81
6. Step 6: Final answer
   x = 30,429.10