Finding the Third Proportional to 39,448.69 and 55,487.53

Step by Step Solution

1. Step 1: Write the proportion equation
   39,448.69 : 55,487.53 = 55,487.53 : x
2. Step 2: Convert to fraction form
   39,448.69/55,487.53 = 55,487.53/x
3. Step 3: Cross multiply
   39,448.69x = 55,487.53 × 55,487.53
4. Step 4: Simplify right side
   39,448.69x = 3,078,866,124.22
5. Step 5: Solve for x
   x = 3,078,866,124.22/39,448.69
6. Step 6: Final answer
   x = 78,047.37