Finding the Third Proportional to 9,739.50 and 20,692.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,739.50 : 20,692.50 = 20,692.50 : x
2. Step 2: Convert to fraction form
   9,739.50/20,692.50 = 20,692.50/x
3. Step 3: Cross multiply
   9,739.50x = 20,692.50 × 20,692.50
4. Step 4: Simplify right side
   9,739.50x = 428,179,556.25
5. Step 5: Solve for x
   x = 428,179,556.25/9,739.50
6. Step 6: Final answer
   x = 43,963.20