Finding the Third Proportional to 7,320 and 17,692.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,320 : 17,692.50 = 17,692.50 : x
2. Step 2: Convert to fraction form
   7,320/17,692.50 = 17,692.50/x
3. Step 3: Cross multiply
   7,320x = 17,692.50 × 17,692.50
4. Step 4: Simplify right side
   7,320x = 313,024,556.25
5. Step 5: Solve for x
   x = 313,024,556.25/7,320
6. Step 6: Final answer
   x = 42,762.92