Finding the Third Proportional to 225,141 and 342,353.25

Step by Step Solution

1. Step 1: Write the proportion equation
   225,141 : 342,353.25 = 342,353.25 : x
2. Step 2: Convert to fraction form
   225,141/342,353.25 = 342,353.25/x
3. Step 3: Cross multiply
   225,141x = 342,353.25 × 342,353.25
4. Step 4: Simplify right side
   225,141x = 117,205,747,785.56
5. Step 5: Solve for x
   x = 117,205,747,785.56/225,141
6. Step 6: Final answer
   x = 520,588.20