Finding the Third Proportional to 744.88 and 812.38

Step by Step Solution

1. Step 1: Write the proportion equation
   744.88 : 812.38 = 812.38 : x
2. Step 2: Convert to fraction form
   744.88/812.38 = 812.38/x
3. Step 3: Cross multiply
   744.88x = 812.38 × 812.38
4. Step 4: Simplify right side
   744.88x = 659,953.14
5. Step 5: Solve for x
   x = 659,953.14/744.88
6. Step 6: Final answer
   x = 885.99