Finding the Third Proportional to 13,399.17 and 19,697.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,399.17 : 19,697.34 = 19,697.34 : x
2. Step 2: Convert to fraction form
   13,399.17/19,697.34 = 19,697.34/x
3. Step 3: Cross multiply
   13,399.17x = 19,697.34 × 19,697.34
4. Step 4: Simplify right side
   13,399.17x = 387,985,350.81
5. Step 5: Solve for x
   x = 387,985,350.81/13,399.17
6. Step 6: Final answer
   x = 28,955.92