Finding the Third Proportional to 12,913.13 and 19,953.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,913.13 : 19,953.38 = 19,953.38 : x
2. Step 2: Convert to fraction form
   12,913.13/19,953.38 = 19,953.38/x
3. Step 3: Cross multiply
   12,913.13x = 19,953.38 × 19,953.38
4. Step 4: Simplify right side
   12,913.13x = 398,137,173.89
5. Step 5: Solve for x
   x = 398,137,173.89/12,913.13
6. Step 6: Final answer
   x = 30,831.98