Finding the Third Proportional to 159,018.50 and 345,643.50

Step by Step Solution

1. Step 1: Write the proportion equation
   159,018.50 : 345,643.50 = 345,643.50 : x
2. Step 2: Convert to fraction form
   159,018.50/345,643.50 = 345,643.50/x
3. Step 3: Cross multiply
   159,018.50x = 345,643.50 × 345,643.50
4. Step 4: Simplify right side
   159,018.50x = 119,469,429,092.25
5. Step 5: Solve for x
   x = 119,469,429,092.25/159,018.50
6. Step 6: Final answer
   x = 751,292.64