Finding the Third Proportional to 108,558 and 235,680.75

Step by Step Solution

1. Step 1: Write the proportion equation
   108,558 : 235,680.75 = 235,680.75 : x
2. Step 2: Convert to fraction form
   108,558/235,680.75 = 235,680.75/x
3. Step 3: Cross multiply
   108,558x = 235,680.75 × 235,680.75
4. Step 4: Simplify right side
   108,558x = 55,545,415,920.56
5. Step 5: Solve for x
   x = 55,545,415,920.56/108,558
6. Step 6: Final answer
   x = 511,665.80