Finding the Third Proportional to 305,250 and 663,028.50

Step by Step Solution

1. Step 1: Write the proportion equation
   305,250 : 663,028.50 = 663,028.50 : x
2. Step 2: Convert to fraction form
   305,250/663,028.50 = 663,028.50/x
3. Step 3: Cross multiply
   305,250x = 663,028.50 × 663,028.50
4. Step 4: Simplify right side
   305,250x = 439,606,791,812.25
5. Step 5: Solve for x
   x = 439,606,791,812.25/305,250
6. Step 6: Final answer
   x = 1,440,153.29