Finding the Third Proportional to 6,913.13 and 10,387.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,913.13 : 10,387.69 = 10,387.69 : x
2. Step 2: Convert to fraction form
   6,913.13/10,387.69 = 10,387.69/x
3. Step 3: Cross multiply
   6,913.13x = 10,387.69 × 10,387.69
4. Step 4: Simplify right side
   6,913.13x = 107,904,051.60
5. Step 5: Solve for x
   x = 107,904,051.60/6,913.13
6. Step 6: Final answer
   x = 15,608.58