Finding the Third Proportional to 225,147 and 342,362.50

Step by Step Solution

1. Step 1: Write the proportion equation
   225,147 : 342,362.50 = 342,362.50 : x
2. Step 2: Convert to fraction form
   225,147/342,362.50 = 342,362.50/x
3. Step 3: Cross multiply
   225,147x = 342,362.50 × 342,362.50
4. Step 4: Simplify right side
   225,147x = 117,212,081,406.25
5. Step 5: Solve for x
   x = 117,212,081,406.25/225,147
6. Step 6: Final answer
   x = 520,602.46