Finding the Third Proportional to 128,079.75 and 191,079

Step by Step Solution

1. Step 1: Write the proportion equation
   128,079.75 : 191,079 = 191,079 : x
2. Step 2: Convert to fraction form
   128,079.75/191,079 = 191,079/x
3. Step 3: Cross multiply
   128,079.75x = 191,079 × 191,079
4. Step 4: Simplify right side
   128,079.75x = 36,511,184,241
5. Step 5: Solve for x
   x = 36,511,184,241/128,079.75
6. Step 6: Final answer
   x = 285,066.02