Finding the Third Proportional to 116,779.50 and 235,609.50

Step by Step Solution

1. Step 1: Write the proportion equation
   116,779.50 : 235,609.50 = 235,609.50 : x
2. Step 2: Convert to fraction form
   116,779.50/235,609.50 = 235,609.50/x
3. Step 3: Cross multiply
   116,779.50x = 235,609.50 × 235,609.50
4. Step 4: Simplify right side
   116,779.50x = 55,511,836,490.25
5. Step 5: Solve for x
   x = 55,511,836,490.25/116,779.50
6. Step 6: Final answer
   x = 475,356.00