Finding the Third Proportional to 153,066 and 205,287

Step by Step Solution

1. Step 1: Write the proportion equation
   153,066 : 205,287 = 205,287 : x
2. Step 2: Convert to fraction form
   153,066/205,287 = 205,287/x
3. Step 3: Cross multiply
   153,066x = 205,287 × 205,287
4. Step 4: Simplify right side
   153,066x = 42,142,752,369
5. Step 5: Solve for x
   x = 42,142,752,369/153,066
6. Step 6: Final answer
   x = 275,324.06