Finding the Third Proportional to 191,488.50 and 303,072.75

Step by Step Solution

1. Step 1: Write the proportion equation
   191,488.50 : 303,072.75 = 303,072.75 : x
2. Step 2: Convert to fraction form
   191,488.50/303,072.75 = 303,072.75/x
3. Step 3: Cross multiply
   191,488.50x = 303,072.75 × 303,072.75
4. Step 4: Simplify right side
   191,488.50x = 91,853,091,792.56
5. Step 5: Solve for x
   x = 91,853,091,792.56/191,488.50
6. Step 6: Final answer
   x = 479,679.42