Finding the Third Proportional to 31,692.50 and 48,905.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,692.50 : 48,905.50 = 48,905.50 : x
2. Step 2: Convert to fraction form
   31,692.50/48,905.50 = 48,905.50/x
3. Step 3: Cross multiply
   31,692.50x = 48,905.50 × 48,905.50
4. Step 4: Simplify right side
   31,692.50x = 2,391,747,930.25
5. Step 5: Solve for x
   x = 2,391,747,930.25/31,692.50
6. Step 6: Final answer
   x = 75,467.32