Finding the Third Proportional to 39,138.19 and 55,950.75

Step by Step Solution

1. Step 1: Write the proportion equation
   39,138.19 : 55,950.75 = 55,950.75 : x
2. Step 2: Convert to fraction form
   39,138.19/55,950.75 = 55,950.75/x
3. Step 3: Cross multiply
   39,138.19x = 55,950.75 × 55,950.75
4. Step 4: Simplify right side
   39,138.19x = 3,130,486,425.56
5. Step 5: Solve for x
   x = 3,130,486,425.56/39,138.19
6. Step 6: Final answer
   x = 79,985.47