Finding the Third Proportional to 65,766.38 and 144,938.25

Step by Step Solution

1. Step 1: Write the proportion equation
   65,766.38 : 144,938.25 = 144,938.25 : x
2. Step 2: Convert to fraction form
   65,766.38/144,938.25 = 144,938.25/x
3. Step 3: Cross multiply
   65,766.38x = 144,938.25 × 144,938.25
4. Step 4: Simplify right side
   65,766.38x = 21,007,096,313.06
5. Step 5: Solve for x
   x = 21,007,096,313.06/65,766.38
6. Step 6: Final answer
   x = 319,420.01