Finding the Third Proportional to 142,092 and 218,970

Step by Step Solution

1. Step 1: Write the proportion equation
   142,092 : 218,970 = 218,970 : x
2. Step 2: Convert to fraction form
   142,092/218,970 = 218,970/x
3. Step 3: Cross multiply
   142,092x = 218,970 × 218,970
4. Step 4: Simplify right side
   142,092x = 47,947,860,900
5. Step 5: Solve for x
   x = 47,947,860,900/142,092
6. Step 6: Final answer
   x = 337,442.37