Finding the Third Proportional to 38,139.75 and 55,022.63

Step by Step Solution

1. Step 1: Write the proportion equation
   38,139.75 : 55,022.63 = 55,022.63 : x
2. Step 2: Convert to fraction form
   38,139.75/55,022.63 = 55,022.63/x
3. Step 3: Cross multiply
   38,139.75x = 55,022.63 × 55,022.63
4. Step 4: Simplify right side
   38,139.75x = 3,027,489,261.89
5. Step 5: Solve for x
   x = 3,027,489,261.89/38,139.75
6. Step 6: Final answer
   x = 79,378.84