Finding the Third Proportional to 6,429.38 and 13,938.75

Step by Step Solution

1. Step 1: Write the proportion equation
   6,429.38 : 13,938.75 = 13,938.75 : x
2. Step 2: Convert to fraction form
   6,429.38/13,938.75 = 13,938.75/x
3. Step 3: Cross multiply
   6,429.38x = 13,938.75 × 13,938.75
4. Step 4: Simplify right side
   6,429.38x = 194,288,751.56
5. Step 5: Solve for x
   x = 194,288,751.56/6,429.38
6. Step 6: Final answer
   x = 30,218.92