Finding the Third Proportional to 67,938 and 148,218

Step by Step Solution

1. Step 1: Write the proportion equation
   67,938 : 148,218 = 148,218 : x
2. Step 2: Convert to fraction form
   67,938/148,218 = 148,218/x
3. Step 3: Cross multiply
   67,938x = 148,218 × 148,218
4. Step 4: Simplify right side
   67,938x = 21,968,575,524
5. Step 5: Solve for x
   x = 21,968,575,524/67,938
6. Step 6: Final answer
   x = 323,362.12