Finding the Third Proportional to 57,084.75 and 123,980.63

Step by Step Solution

1. Step 1: Write the proportion equation
   57,084.75 : 123,980.63 = 123,980.63 : x
2. Step 2: Convert to fraction form
   57,084.75/123,980.63 = 123,980.63/x
3. Step 3: Cross multiply
   57,084.75x = 123,980.63 × 123,980.63
4. Step 4: Simplify right side
   57,084.75x = 15,371,195,375.39
5. Step 5: Solve for x
   x = 15,371,195,375.39/57,084.75
6. Step 6: Final answer
   x = 269,269.73