Finding the Third Proportional to 144,171 and 309,652.50

Step by Step Solution

1. Step 1: Write the proportion equation
   144,171 : 309,652.50 = 309,652.50 : x
2. Step 2: Convert to fraction form
   144,171/309,652.50 = 309,652.50/x
3. Step 3: Cross multiply
   144,171x = 309,652.50 × 309,652.50
4. Step 4: Simplify right side
   144,171x = 95,884,670,756.25
5. Step 5: Solve for x
   x = 95,884,670,756.25/144,171
6. Step 6: Final answer
   x = 665,075.99