Finding the Third Proportional to 67,722 and 145,849.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,722 : 145,849.50 = 145,849.50 : x
2. Step 2: Convert to fraction form
   67,722/145,849.50 = 145,849.50/x
3. Step 3: Cross multiply
   67,722x = 145,849.50 × 145,849.50
4. Step 4: Simplify right side
   67,722x = 21,272,076,650.25
5. Step 5: Solve for x
   x = 21,272,076,650.25/67,722
6. Step 6: Final answer
   x = 314,108.81