Finding the Third Proportional to 39,063.75 and 55,311.09

Step by Step Solution

1. Step 1: Write the proportion equation
   39,063.75 : 55,311.09 = 55,311.09 : x
2. Step 2: Convert to fraction form
   39,063.75/55,311.09 = 55,311.09/x
3. Step 3: Cross multiply
   39,063.75x = 55,311.09 × 55,311.09
4. Step 4: Simplify right side
   39,063.75x = 3,059,317,091.82
5. Step 5: Solve for x
   x = 3,059,317,091.82/39,063.75
6. Step 6: Final answer
   x = 78,316.01