Finding the Third Proportional to 67,302 and 146,390

Step by Step Solution

1. Step 1: Write the proportion equation
   67,302 : 146,390 = 146,390 : x
2. Step 2: Convert to fraction form
   67,302/146,390 = 146,390/x
3. Step 3: Cross multiply
   67,302x = 146,390 × 146,390
4. Step 4: Simplify right side
   67,302x = 21,430,032,100
5. Step 5: Solve for x
   x = 21,430,032,100/67,302
6. Step 6: Final answer
   x = 318,415.98