Finding the Third Proportional to 115,789.50 and 225,200.25

Step by Step Solution

1. Step 1: Write the proportion equation
   115,789.50 : 225,200.25 = 225,200.25 : x
2. Step 2: Convert to fraction form
   115,789.50/225,200.25 = 225,200.25/x
3. Step 3: Cross multiply
   115,789.50x = 225,200.25 × 225,200.25
4. Step 4: Simplify right side
   115,789.50x = 50,715,152,600.06
5. Step 5: Solve for x
   x = 50,715,152,600.06/115,789.50
6. Step 6: Final answer
   x = 437,994.40