Finding the Third Proportional to 38,857.75 and 69,719.75

Step by Step Solution

1. Step 1: Write the proportion equation
   38,857.75 : 69,719.75 = 69,719.75 : x
2. Step 2: Convert to fraction form
   38,857.75/69,719.75 = 69,719.75/x
3. Step 3: Cross multiply
   38,857.75x = 69,719.75 × 69,719.75
4. Step 4: Simplify right side
   38,857.75x = 4,860,843,540.06
5. Step 5: Solve for x
   x = 4,860,843,540.06/38,857.75
6. Step 6: Final answer
   x = 125,093.28