Finding the Third Proportional to 16,603.50 and 36,123

Step by Step Solution

1. Step 1: Write the proportion equation
   16,603.50 : 36,123 = 36,123 : x
2. Step 2: Convert to fraction form
   16,603.50/36,123 = 36,123/x
3. Step 3: Cross multiply
   16,603.50x = 36,123 × 36,123
4. Step 4: Simplify right side
   16,603.50x = 1,304,871,129
5. Step 5: Solve for x
   x = 1,304,871,129/16,603.50
6. Step 6: Final answer
   x = 78,590.12