Finding the Third Proportional to 57,799.50 and 124,905

Step by Step Solution

1. Step 1: Write the proportion equation
   57,799.50 : 124,905 = 124,905 : x
2. Step 2: Convert to fraction form
   57,799.50/124,905 = 124,905/x
3. Step 3: Cross multiply
   57,799.50x = 124,905 × 124,905
4. Step 4: Simplify right side
   57,799.50x = 15,601,259,025
5. Step 5: Solve for x
   x = 15,601,259,025/57,799.50
6. Step 6: Final answer
   x = 269,920.31