Finding the Third Proportional to 222,160 and 487,538

Step by Step Solution

1. Step 1: Write the proportion equation
   222,160 : 487,538 = 487,538 : x
2. Step 2: Convert to fraction form
   222,160/487,538 = 487,538/x
3. Step 3: Cross multiply
   222,160x = 487,538 × 487,538
4. Step 4: Simplify right side
   222,160x = 237,693,301,444
5. Step 5: Solve for x
   x = 237,693,301,444/222,160
6. Step 6: Final answer
   x = 1,069,919.43