Finding the Third Proportional to 214,708.50 and 315,495

Step by Step Solution

1. Step 1: Write the proportion equation
   214,708.50 : 315,495 = 315,495 : x
2. Step 2: Convert to fraction form
   214,708.50/315,495 = 315,495/x
3. Step 3: Cross multiply
   214,708.50x = 315,495 × 315,495
4. Step 4: Simplify right side
   214,708.50x = 99,537,095,025
5. Step 5: Solve for x
   x = 99,537,095,025/214,708.50
6. Step 6: Final answer
   x = 463,591.78