Finding the Third Proportional to 144,814.50 and 221,535

Step by Step Solution

1. Step 1: Write the proportion equation
   144,814.50 : 221,535 = 221,535 : x
2. Step 2: Convert to fraction form
   144,814.50/221,535 = 221,535/x
3. Step 3: Cross multiply
   144,814.50x = 221,535 × 221,535
4. Step 4: Simplify right side
   144,814.50x = 49,077,756,225
5. Step 5: Solve for x
   x = 49,077,756,225/144,814.50
6. Step 6: Final answer
   x = 338,900.84