Finding the Third Proportional to 129,067 and 189,367.50

Step by Step Solution

1. Step 1: Write the proportion equation
   129,067 : 189,367.50 = 189,367.50 : x
2. Step 2: Convert to fraction form
   129,067/189,367.50 = 189,367.50/x
3. Step 3: Cross multiply
   129,067x = 189,367.50 × 189,367.50
4. Step 4: Simplify right side
   129,067x = 35,860,050,056.25
5. Step 5: Solve for x
   x = 35,860,050,056.25/129,067
6. Step 6: Final answer
   x = 277,840.58