Finding the Third Proportional to 120,716 and 191,105.75

Step by Step Solution

1. Step 1: Write the proportion equation
   120,716 : 191,105.75 = 191,105.75 : x
2. Step 2: Convert to fraction form
   120,716/191,105.75 = 191,105.75/x
3. Step 3: Cross multiply
   120,716x = 191,105.75 × 191,105.75
4. Step 4: Simplify right side
   120,716x = 36,521,407,683.06
5. Step 5: Solve for x
   x = 36,521,407,683.06/120,716
6. Step 6: Final answer
   x = 302,539.91