Finding the Third Proportional to 6,454.69 and 13,678.03

Step by Step Solution

1. Step 1: Write the proportion equation
   6,454.69 : 13,678.03 = 13,678.03 : x
2. Step 2: Convert to fraction form
   6,454.69/13,678.03 = 13,678.03/x
3. Step 3: Cross multiply
   6,454.69x = 13,678.03 × 13,678.03
4. Step 4: Simplify right side
   6,454.69x = 187,088,538.88
5. Step 5: Solve for x
   x = 187,088,538.88/6,454.69
6. Step 6: Final answer
   x = 28,984.91