Finding the Third Proportional to 11,692.69 and 18,355.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,692.69 : 18,355.78 = 18,355.78 : x
2. Step 2: Convert to fraction form
   11,692.69/18,355.78 = 18,355.78/x
3. Step 3: Cross multiply
   11,692.69x = 18,355.78 × 18,355.78
4. Step 4: Simplify right side
   11,692.69x = 336,934,705.30
5. Step 5: Solve for x
   x = 336,934,705.30/11,692.69
6. Step 6: Final answer
   x = 28,815.85