Finding the Third Proportional to 463.22 and 784.69

Step by Step Solution

1. Step 1: Write the proportion equation
   463.22 : 784.69 = 784.69 : x
2. Step 2: Convert to fraction form
   463.22/784.69 = 784.69/x
3. Step 3: Cross multiply
   463.22x = 784.69 × 784.69
4. Step 4: Simplify right side
   463.22x = 615,734.47
5. Step 5: Solve for x
   x = 615,734.47/463.22
6. Step 6: Final answer
   x = 1,329.25