Finding the Third Proportional to 308,299.50 and 675,513

Step by Step Solution

1. Step 1: Write the proportion equation
   308,299.50 : 675,513 = 675,513 : x
2. Step 2: Convert to fraction form
   308,299.50/675,513 = 675,513/x
3. Step 3: Cross multiply
   308,299.50x = 675,513 × 675,513
4. Step 4: Simplify right side
   308,299.50x = 456,317,813,169
5. Step 5: Solve for x
   x = 456,317,813,169/308,299.50
6. Step 6: Final answer
   x = 1,480,112.08