Finding the Third Proportional to 6,667.31 and 13,780.13

Step by Step Solution

1. Step 1: Write the proportion equation
   6,667.31 : 13,780.13 = 13,780.13 : x
2. Step 2: Convert to fraction form
   6,667.31/13,780.13 = 13,780.13/x
3. Step 3: Cross multiply
   6,667.31x = 13,780.13 × 13,780.13
4. Step 4: Simplify right side
   6,667.31x = 189,891,845.02
5. Step 5: Solve for x
   x = 189,891,845.02/6,667.31
6. Step 6: Final answer
   x = 28,481.02