Finding the Third Proportional to 67,828.50 and 145,001.25

Step by Step Solution

1. Step 1: Write the proportion equation
   67,828.50 : 145,001.25 = 145,001.25 : x
2. Step 2: Convert to fraction form
   67,828.50/145,001.25 = 145,001.25/x
3. Step 3: Cross multiply
   67,828.50x = 145,001.25 × 145,001.25
4. Step 4: Simplify right side
   67,828.50x = 21,025,362,501.56
5. Step 5: Solve for x
   x = 21,025,362,501.56/67,828.50
6. Step 6: Final answer
   x = 309,978.29