Finding the Third Proportional to 38,128.50 and 55,005.75

Step by Step Solution

1. Step 1: Write the proportion equation
   38,128.50 : 55,005.75 = 55,005.75 : x
2. Step 2: Convert to fraction form
   38,128.50/55,005.75 = 55,005.75/x
3. Step 3: Cross multiply
   38,128.50x = 55,005.75 × 55,005.75
4. Step 4: Simplify right side
   38,128.50x = 3,025,632,533.06
5. Step 5: Solve for x
   x = 3,025,632,533.06/38,128.50
6. Step 6: Final answer
   x = 79,353.57