Finding the Third Proportional to 139,848 and 213,924

Step by Step Solution

1. Step 1: Write the proportion equation
   139,848 : 213,924 = 213,924 : x
2. Step 2: Convert to fraction form
   139,848/213,924 = 213,924/x
3. Step 3: Cross multiply
   139,848x = 213,924 × 213,924
4. Step 4: Simplify right side
   139,848x = 45,763,477,776
5. Step 5: Solve for x
   x = 45,763,477,776/139,848
6. Step 6: Final answer
   x = 327,237.27