Finding the Third Proportional to 230,789.25 and 349,272

Step by Step Solution

1. Step 1: Write the proportion equation
   230,789.25 : 349,272 = 349,272 : x
2. Step 2: Convert to fraction form
   230,789.25/349,272 = 349,272/x
3. Step 3: Cross multiply
   230,789.25x = 349,272 × 349,272
4. Step 4: Simplify right side
   230,789.25x = 121,990,929,984
5. Step 5: Solve for x
   x = 121,990,929,984/230,789.25
6. Step 6: Final answer
   x = 528,581.51