Finding the Third Proportional to 149,602.50 and 229,936.50

Step by Step Solution

1. Step 1: Write the proportion equation
   149,602.50 : 229,936.50 = 229,936.50 : x
2. Step 2: Convert to fraction form
   149,602.50/229,936.50 = 229,936.50/x
3. Step 3: Cross multiply
   149,602.50x = 229,936.50 × 229,936.50
4. Step 4: Simplify right side
   149,602.50x = 52,870,794,032.25
5. Step 5: Solve for x
   x = 52,870,794,032.25/149,602.50
6. Step 6: Final answer
   x = 353,408.49