Finding the Third Proportional to 355,123 and 762,950

Step by Step Solution

1. Step 1: Write the proportion equation
   355,123 : 762,950 = 762,950 : x
2. Step 2: Convert to fraction form
   355,123/762,950 = 762,950/x
3. Step 3: Cross multiply
   355,123x = 762,950 × 762,950
4. Step 4: Simplify right side
   355,123x = 582,092,702,500
5. Step 5: Solve for x
   x = 582,092,702,500/355,123
6. Step 6: Final answer
   x = 1,639,129.83