Finding the Third Proportional to 39,448.88 and 55,487.63

Step by Step Solution

1. Step 1: Write the proportion equation
   39,448.88 : 55,487.63 = 55,487.63 : x
2. Step 2: Convert to fraction form
   39,448.88/55,487.63 = 55,487.63/x
3. Step 3: Cross multiply
   39,448.88x = 55,487.63 × 55,487.63
4. Step 4: Simplify right side
   39,448.88x = 3,078,876,528.14
5. Step 5: Solve for x
   x = 3,078,876,528.14/39,448.88
6. Step 6: Final answer
   x = 78,047.26