Finding the Third Proportional to 6,415.88 and 13,960.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,415.88 : 13,960.69 = 13,960.69 : x
2. Step 2: Convert to fraction form
   6,415.88/13,960.69 = 13,960.69/x
3. Step 3: Cross multiply
   6,415.88x = 13,960.69 × 13,960.69
4. Step 4: Simplify right side
   6,415.88x = 194,900,795.47
5. Step 5: Solve for x
   x = 194,900,795.47/6,415.88
6. Step 6: Final answer
   x = 30,377.90