Finding the Third Proportional to 103,666 and 279,260

Step by Step Solution

1. Step 1: Write the proportion equation
   103,666 : 279,260 = 279,260 : x
2. Step 2: Convert to fraction form
   103,666/279,260 = 279,260/x
3. Step 3: Cross multiply
   103,666x = 279,260 × 279,260
4. Step 4: Simplify right side
   103,666x = 77,986,147,600
5. Step 5: Solve for x
   x = 77,986,147,600/103,666
6. Step 6: Final answer
   x = 752,282.79