Finding the Third Proportional to 65,881.50 and 144,883.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,881.50 : 144,883.50 = 144,883.50 : x
2. Step 2: Convert to fraction form
   65,881.50/144,883.50 = 144,883.50/x
3. Step 3: Cross multiply
   65,881.50x = 144,883.50 × 144,883.50
4. Step 4: Simplify right side
   65,881.50x = 20,991,228,572.25
5. Step 5: Solve for x
   x = 20,991,228,572.25/65,881.50
6. Step 6: Final answer
   x = 318,620.99