Finding the Third Proportional to 39,739 and 55,091.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,739 : 55,091.50 = 55,091.50 : x
2. Step 2: Convert to fraction form
   39,739/55,091.50 = 55,091.50/x
3. Step 3: Cross multiply
   39,739x = 55,091.50 × 55,091.50
4. Step 4: Simplify right side
   39,739x = 3,035,073,372.25
5. Step 5: Solve for x
   x = 3,035,073,372.25/39,739
6. Step 6: Final answer
   x = 76,375.18