Finding the Third Proportional to 144,722 and 223,643.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,722 : 223,643.50 = 223,643.50 : x
2. Step 2: Convert to fraction form
   144,722/223,643.50 = 223,643.50/x
3. Step 3: Cross multiply
   144,722x = 223,643.50 × 223,643.50
4. Step 4: Simplify right side
   144,722x = 50,016,415,092.25
5. Step 5: Solve for x
   x = 50,016,415,092.25/144,722
6. Step 6: Final answer
   x = 345,603.40