Finding the Third Proportional to 5,448.38 and 8,385.75

Step by Step Solution

1. Step 1: Write the proportion equation
   5,448.38 : 8,385.75 = 8,385.75 : x
2. Step 2: Convert to fraction form
   5,448.38/8,385.75 = 8,385.75/x
3. Step 3: Cross multiply
   5,448.38x = 8,385.75 × 8,385.75
4. Step 4: Simplify right side
   5,448.38x = 70,320,803.06
5. Step 5: Solve for x
   x = 70,320,803.06/5,448.38
6. Step 6: Final answer
   x = 12,906.75