Finding the Third Proportional to 256,111.50 and 279,075

Step by Step Solution

1. Step 1: Write the proportion equation
   256,111.50 : 279,075 = 279,075 : x
2. Step 2: Convert to fraction form
   256,111.50/279,075 = 279,075/x
3. Step 3: Cross multiply
   256,111.50x = 279,075 × 279,075
4. Step 4: Simplify right side
   256,111.50x = 77,882,855,625
5. Step 5: Solve for x
   x = 77,882,855,625/256,111.50
6. Step 6: Final answer
   x = 304,097.46