Finding the Third Proportional to 50,431.50 and 74,187

Step by Step Solution

1. Step 1: Write the proportion equation
   50,431.50 : 74,187 = 74,187 : x
2. Step 2: Convert to fraction form
   50,431.50/74,187 = 74,187/x
3. Step 3: Cross multiply
   50,431.50x = 74,187 × 74,187
4. Step 4: Simplify right side
   50,431.50x = 5,503,710,969
5. Step 5: Solve for x
   x = 5,503,710,969/50,431.50
6. Step 6: Final answer
   x = 109,132.41