Finding the Third Proportional to 64,723.50 and 144,513

Step by Step Solution

1. Step 1: Write the proportion equation
   64,723.50 : 144,513 = 144,513 : x
2. Step 2: Convert to fraction form
   64,723.50/144,513 = 144,513/x
3. Step 3: Cross multiply
   64,723.50x = 144,513 × 144,513
4. Step 4: Simplify right side
   64,723.50x = 20,884,007,169
5. Step 5: Solve for x
   x = 20,884,007,169/64,723.50
6. Step 6: Final answer
   x = 322,664.99