Finding the Third Proportional to 116,979.75 and 273,249

Step by Step Solution

1. Step 1: Write the proportion equation
   116,979.75 : 273,249 = 273,249 : x
2. Step 2: Convert to fraction form
   116,979.75/273,249 = 273,249/x
3. Step 3: Cross multiply
   116,979.75x = 273,249 × 273,249
4. Step 4: Simplify right side
   116,979.75x = 74,665,016,001
5. Step 5: Solve for x
   x = 74,665,016,001/116,979.75
6. Step 6: Final answer
   x = 638,273.00