Finding the Third Proportional to 152,142 and 222,579

Step by Step Solution

1. Step 1: Write the proportion equation
   152,142 : 222,579 = 222,579 : x
2. Step 2: Convert to fraction form
   152,142/222,579 = 222,579/x
3. Step 3: Cross multiply
   152,142x = 222,579 × 222,579
4. Step 4: Simplify right side
   152,142x = 49,541,411,241
5. Step 5: Solve for x
   x = 49,541,411,241/152,142
6. Step 6: Final answer
   x = 325,626.13