Finding the Third Proportional to 222,136 and 487,502

Step by Step Solution

1. Step 1: Write the proportion equation
   222,136 : 487,502 = 487,502 : x
2. Step 2: Convert to fraction form
   222,136/487,502 = 487,502/x
3. Step 3: Cross multiply
   222,136x = 487,502 × 487,502
4. Step 4: Simplify right side
   222,136x = 237,658,200,004
5. Step 5: Solve for x
   x = 237,658,200,004/222,136
6. Step 6: Final answer
   x = 1,069,877.01