Finding the Third Proportional to 6,315.38 and 9,907.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,315.38 : 9,907.69 = 9,907.69 : x
2. Step 2: Convert to fraction form
   6,315.38/9,907.69 = 9,907.69/x
3. Step 3: Cross multiply
   6,315.38x = 9,907.69 × 9,907.69
4. Step 4: Simplify right side
   6,315.38x = 98,162,271.60
5. Step 5: Solve for x
   x = 98,162,271.60/6,315.38
6. Step 6: Final answer
   x = 15,543.38