Finding the Third Proportional to 65,013.75 and 139,726.13

Step by Step Solution

1. Step 1: Write the proportion equation
   65,013.75 : 139,726.13 = 139,726.13 : x
2. Step 2: Convert to fraction form
   65,013.75/139,726.13 = 139,726.13/x
3. Step 3: Cross multiply
   65,013.75x = 139,726.13 × 139,726.13
4. Step 4: Simplify right side
   65,013.75x = 19,523,390,007.52
5. Step 5: Solve for x
   x = 19,523,390,007.52/65,013.75
6. Step 6: Final answer
   x = 300,296.32