Finding the Third Proportional to 144,887 and 221,633.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,887 : 221,633.50 = 221,633.50 : x
2. Step 2: Convert to fraction form
   144,887/221,633.50 = 221,633.50/x
3. Step 3: Cross multiply
   144,887x = 221,633.50 × 221,633.50
4. Step 4: Simplify right side
   144,887x = 49,121,408,322.25
5. Step 5: Solve for x
   x = 49,121,408,322.25/144,887
6. Step 6: Final answer
   x = 339,032.54