Finding the Third Proportional to 145,027.50 and 314,250

Step by Step Solution

1. Step 1: Write the proportion equation
   145,027.50 : 314,250 = 314,250 : x
2. Step 2: Convert to fraction form
   145,027.50/314,250 = 314,250/x
3. Step 3: Cross multiply
   145,027.50x = 314,250 × 314,250
4. Step 4: Simplify right side
   145,027.50x = 98,753,062,500
5. Step 5: Solve for x
   x = 98,753,062,500/145,027.50
6. Step 6: Final answer
   x = 680,926.46