Finding the Third Proportional to 102,310 and 222,328

Step by Step Solution

1. Step 1: Write the proportion equation
   102,310 : 222,328 = 222,328 : x
2. Step 2: Convert to fraction form
   102,310/222,328 = 222,328/x
3. Step 3: Cross multiply
   102,310x = 222,328 × 222,328
4. Step 4: Simplify right side
   102,310x = 49,429,739,584
5. Step 5: Solve for x
   x = 49,429,739,584/102,310
6. Step 6: Final answer
   x = 483,136.93