Finding the Third Proportional to 7,485.05 and 12,474.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,485.05 : 12,474.42 = 12,474.42 : x
2. Step 2: Convert to fraction form
   7,485.05/12,474.42 = 12,474.42/x
3. Step 3: Cross multiply
   7,485.05x = 12,474.42 × 12,474.42
4. Step 4: Simplify right side
   7,485.05x = 155,611,201.12
5. Step 5: Solve for x
   x = 155,611,201.12/7,485.05
6. Step 6: Final answer
   x = 20,789.61