Finding the Third Proportional to 353,956 and 764,216

Step by Step Solution

1. Step 1: Write the proportion equation
   353,956 : 764,216 = 764,216 : x
2. Step 2: Convert to fraction form
   353,956/764,216 = 764,216/x
3. Step 3: Cross multiply
   353,956x = 764,216 × 764,216
4. Step 4: Simplify right side
   353,956x = 584,026,094,656
5. Step 5: Solve for x
   x = 584,026,094,656/353,956
6. Step 6: Final answer
   x = 1,649,996.31