Finding the Third Proportional to 39,298.22 and 55,552.78

Step by Step Solution

1. Step 1: Write the proportion equation
   39,298.22 : 55,552.78 = 55,552.78 : x
2. Step 2: Convert to fraction form
   39,298.22/55,552.78 = 55,552.78/x
3. Step 3: Cross multiply
   39,298.22x = 55,552.78 × 55,552.78
4. Step 4: Simplify right side
   39,298.22x = 3,086,111,504.61
5. Step 5: Solve for x
   x = 3,086,111,504.61/39,298.22
6. Step 6: Final answer
   x = 78,530.57