Finding the Third Proportional to 7,642.69 and 12,160.13

Step by Step Solution

1. Step 1: Write the proportion equation
   7,642.69 : 12,160.13 = 12,160.13 : x
2. Step 2: Convert to fraction form
   7,642.69/12,160.13 = 12,160.13/x
3. Step 3: Cross multiply
   7,642.69x = 12,160.13 × 12,160.13
4. Step 4: Simplify right side
   7,642.69x = 147,868,640.02
5. Step 5: Solve for x
   x = 147,868,640.02/7,642.69
6. Step 6: Final answer
   x = 19,347.73