Finding the Third Proportional to 122,379 and 164,692.50

Step by Step Solution

1. Step 1: Write the proportion equation
   122,379 : 164,692.50 = 164,692.50 : x
2. Step 2: Convert to fraction form
   122,379/164,692.50 = 164,692.50/x
3. Step 3: Cross multiply
   122,379x = 164,692.50 × 164,692.50
4. Step 4: Simplify right side
   122,379x = 27,123,619,556.25
5. Step 5: Solve for x
   x = 27,123,619,556.25/122,379
6. Step 6: Final answer
   x = 221,636.22