Finding the Third Proportional to 3,622.19 and 7,640.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,622.19 : 7,640.03 = 7,640.03 : x
2. Step 2: Convert to fraction form
   3,622.19/7,640.03 = 7,640.03/x
3. Step 3: Cross multiply
   3,622.19x = 7,640.03 × 7,640.03
4. Step 4: Simplify right side
   3,622.19x = 58,370,077.50
5. Step 5: Solve for x
   x = 58,370,077.50/3,622.19
6. Step 6: Final answer
   x = 16,114.59