Finding the Third Proportional to 129,104 and 279,654.50

Step by Step Solution

1. Step 1: Write the proportion equation
   129,104 : 279,654.50 = 279,654.50 : x
2. Step 2: Convert to fraction form
   129,104/279,654.50 = 279,654.50/x
3. Step 3: Cross multiply
   129,104x = 279,654.50 × 279,654.50
4. Step 4: Simplify right side
   129,104x = 78,206,639,370.25
5. Step 5: Solve for x
   x = 78,206,639,370.25/129,104
6. Step 6: Final answer
   x = 605,764.65