Finding the Third Proportional to 7,338.09 and 12,123.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,338.09 : 12,123.42 = 12,123.42 : x
2. Step 2: Convert to fraction form
   7,338.09/12,123.42 = 12,123.42/x
3. Step 3: Cross multiply
   7,338.09x = 12,123.42 × 12,123.42
4. Step 4: Simplify right side
   7,338.09x = 146,977,357.96
5. Step 5: Solve for x
   x = 146,977,357.96/7,338.09
6. Step 6: Final answer
   x = 20,029.36