Finding the Third Proportional to 144,927 and 309,757.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,927 : 309,757.50 = 309,757.50 : x
2. Step 2: Convert to fraction form
   144,927/309,757.50 = 309,757.50/x
3. Step 3: Cross multiply
   144,927x = 309,757.50 × 309,757.50
4. Step 4: Simplify right side
   144,927x = 95,949,708,806.25
5. Step 5: Solve for x
   x = 95,949,708,806.25/144,927
6. Step 6: Final answer
   x = 662,055.44