Finding the Third Proportional to 65,628.98 and 143,969.91

Step by Step Solution

1. Step 1: Write the proportion equation
   65,628.98 : 143,969.91 = 143,969.91 : x
2. Step 2: Convert to fraction form
   65,628.98/143,969.91 = 143,969.91/x
3. Step 3: Cross multiply
   65,628.98x = 143,969.91 × 143,969.91
4. Step 4: Simplify right side
   65,628.98x = 20,727,333,905.63
5. Step 5: Solve for x
   x = 20,727,333,905.63/65,628.98
6. Step 6: Final answer
   x = 315,825.91