Finding the Third Proportional to 64,480 and 144,832

Step by Step Solution

1. Step 1: Write the proportion equation
   64,480 : 144,832 = 144,832 : x
2. Step 2: Convert to fraction form
   64,480/144,832 = 144,832/x
3. Step 3: Cross multiply
   64,480x = 144,832 × 144,832
4. Step 4: Simplify right side
   64,480x = 20,976,308,224
5. Step 5: Solve for x
   x = 20,976,308,224/64,480
6. Step 6: Final answer
   x = 325,314.95