Finding the Third Proportional to 108,312 and 225,290

Step by Step Solution

1. Step 1: Write the proportion equation
   108,312 : 225,290 = 225,290 : x
2. Step 2: Convert to fraction form
   108,312/225,290 = 225,290/x
3. Step 3: Cross multiply
   108,312x = 225,290 × 225,290
4. Step 4: Simplify right side
   108,312x = 50,755,584,100
5. Step 5: Solve for x
   x = 50,755,584,100/108,312
6. Step 6: Final answer
   x = 468,605.36