Finding the Third Proportional to 67,982.50 and 145,806.25

Step by Step Solution

1. Step 1: Write the proportion equation
   67,982.50 : 145,806.25 = 145,806.25 : x
2. Step 2: Convert to fraction form
   67,982.50/145,806.25 = 145,806.25/x
3. Step 3: Cross multiply
   67,982.50x = 145,806.25 × 145,806.25
4. Step 4: Simplify right side
   67,982.50x = 21,259,462,539.06
5. Step 5: Solve for x
   x = 21,259,462,539.06/67,982.50
6. Step 6: Final answer
   x = 312,719.63