Finding the Third Proportional to 65,307 and 145,185

Step by Step Solution

1. Step 1: Write the proportion equation
   65,307 : 145,185 = 145,185 : x
2. Step 2: Convert to fraction form
   65,307/145,185 = 145,185/x
3. Step 3: Cross multiply
   65,307x = 145,185 × 145,185
4. Step 4: Simplify right side
   65,307x = 21,078,684,225
5. Step 5: Solve for x
   x = 21,078,684,225/65,307
6. Step 6: Final answer
   x = 322,763.02