Finding the Third Proportional to 13,101.75 and 20,430.84

Step by Step Solution

1. Step 1: Write the proportion equation
   13,101.75 : 20,430.84 = 20,430.84 : x
2. Step 2: Convert to fraction form
   13,101.75/20,430.84 = 20,430.84/x
3. Step 3: Cross multiply
   13,101.75x = 20,430.84 × 20,430.84
4. Step 4: Simplify right side
   13,101.75x = 417,419,376.34
5. Step 5: Solve for x
   x = 417,419,376.34/13,101.75
6. Step 6: Final answer
   x = 31,859.82