Finding the Third Proportional to 64,636 and 145,061

Step by Step Solution

1. Step 1: Write the proportion equation
   64,636 : 145,061 = 145,061 : x
2. Step 2: Convert to fraction form
   64,636/145,061 = 145,061/x
3. Step 3: Cross multiply
   64,636x = 145,061 × 145,061
4. Step 4: Simplify right side
   64,636x = 21,042,693,721
5. Step 5: Solve for x
   x = 21,042,693,721/64,636
6. Step 6: Final answer
   x = 325,556.87