Finding the Third Proportional to 138,546 and 303,012

Step by Step Solution

1. Step 1: Write the proportion equation
   138,546 : 303,012 = 303,012 : x
2. Step 2: Convert to fraction form
   138,546/303,012 = 303,012/x
3. Step 3: Cross multiply
   138,546x = 303,012 × 303,012
4. Step 4: Simplify right side
   138,546x = 91,816,272,144
5. Step 5: Solve for x
   x = 91,816,272,144/138,546
6. Step 6: Final answer
   x = 662,713.27