Finding the Third Proportional to 120,910.50 and 251,631

Step by Step Solution

1. Step 1: Write the proportion equation
   120,910.50 : 251,631 = 251,631 : x
2. Step 2: Convert to fraction form
   120,910.50/251,631 = 251,631/x
3. Step 3: Cross multiply
   120,910.50x = 251,631 × 251,631
4. Step 4: Simplify right side
   120,910.50x = 63,318,160,161
5. Step 5: Solve for x
   x = 63,318,160,161/120,910.50
6. Step 6: Final answer
   x = 523,677.93