Finding the Third Proportional to 715.50 and 803.25

Step by Step Solution

1. Step 1: Write the proportion equation
   715.50 : 803.25 = 803.25 : x
2. Step 2: Convert to fraction form
   715.50/803.25 = 803.25/x
3. Step 3: Cross multiply
   715.50x = 803.25 × 803.25
4. Step 4: Simplify right side
   715.50x = 645,210.56
5. Step 5: Solve for x
   x = 645,210.56/715.50
6. Step 6: Final answer
   x = 901.76