Finding the Third Proportional to 225,423 and 359,458.50

Step by Step Solution

1. Step 1: Write the proportion equation
   225,423 : 359,458.50 = 359,458.50 : x
2. Step 2: Convert to fraction form
   225,423/359,458.50 = 359,458.50/x
3. Step 3: Cross multiply
   225,423x = 359,458.50 × 359,458.50
4. Step 4: Simplify right side
   225,423x = 129,210,413,222.25
5. Step 5: Solve for x
   x = 129,210,413,222.25/225,423
6. Step 6: Final answer
   x = 573,190.90