Finding the Third Proportional to 13,320.75 and 19,889.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,320.75 : 19,889.63 = 19,889.63 : x
2. Step 2: Convert to fraction form
   13,320.75/19,889.63 = 19,889.63/x
3. Step 3: Cross multiply
   13,320.75x = 19,889.63 × 19,889.63
4. Step 4: Simplify right side
   13,320.75x = 395,597,182.64
5. Step 5: Solve for x
   x = 395,597,182.64/13,320.75
6. Step 6: Final answer
   x = 29,697.82