Finding the Third Proportional to 50,389.50 and 74,431.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,389.50 : 74,431.50 = 74,431.50 : x
2. Step 2: Convert to fraction form
   50,389.50/74,431.50 = 74,431.50/x
3. Step 3: Cross multiply
   50,389.50x = 74,431.50 × 74,431.50
4. Step 4: Simplify right side
   50,389.50x = 5,540,048,192.25
5. Step 5: Solve for x
   x = 5,540,048,192.25/50,389.50
6. Step 6: Final answer
   x = 109,944.50