Finding the Third Proportional to 225,310 and 492,170

Step by Step Solution

1. Step 1: Write the proportion equation
   225,310 : 492,170 = 492,170 : x
2. Step 2: Convert to fraction form
   225,310/492,170 = 492,170/x
3. Step 3: Cross multiply
   225,310x = 492,170 × 492,170
4. Step 4: Simplify right side
   225,310x = 242,231,308,900
5. Step 5: Solve for x
   x = 242,231,308,900/225,310
6. Step 6: Final answer
   x = 1,075,102.34