Finding the Third Proportional to 34.45 and 53.30

Step by Step Solution

1. Step 1: Write the proportion equation
   34.45 : 53.30 = 53.30 : x
2. Step 2: Convert to fraction form
   34.45/53.30 = 53.30/x
3. Step 3: Cross multiply
   34.45x = 53.30 × 53.30
4. Step 4: Simplify right side
   34.45x = 2,840.56
5. Step 5: Solve for x
   x = 2,840.56/34.45
6. Step 6: Final answer
   x = 82.45