Finding the Third Proportional to 13,030.88 and 19,910.81

Step by Step Solution

1. Step 1: Write the proportion equation
   13,030.88 : 19,910.81 = 19,910.81 : x
2. Step 2: Convert to fraction form
   13,030.88/19,910.81 = 19,910.81/x
3. Step 3: Cross multiply
   13,030.88x = 19,910.81 × 19,910.81
4. Step 4: Simplify right side
   13,030.88x = 396,440,454.41
5. Step 5: Solve for x
   x = 396,440,454.41/13,030.88
6. Step 6: Final answer
   x = 30,423.16