Finding the Third Proportional to 108,979.50 and 235,171.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,979.50 : 235,171.50 = 235,171.50 : x
2. Step 2: Convert to fraction form
   108,979.50/235,171.50 = 235,171.50/x
3. Step 3: Cross multiply
   108,979.50x = 235,171.50 × 235,171.50
4. Step 4: Simplify right side
   108,979.50x = 55,305,634,412.25
5. Step 5: Solve for x
   x = 55,305,634,412.25/108,979.50
6. Step 6: Final answer
   x = 507,486.59