Finding the Third Proportional to 67,308 and 146,840

Step by Step Solution

1. Step 1: Write the proportion equation
   67,308 : 146,840 = 146,840 : x
2. Step 2: Convert to fraction form
   67,308/146,840 = 146,840/x
3. Step 3: Cross multiply
   67,308x = 146,840 × 146,840
4. Step 4: Simplify right side
   67,308x = 21,561,985,600
5. Step 5: Solve for x
   x = 21,561,985,600/67,308
6. Step 6: Final answer
   x = 320,348.04