Finding the Third Proportional to 140,722 and 298,716

Step by Step Solution

1. Step 1: Write the proportion equation
   140,722 : 298,716 = 298,716 : x
2. Step 2: Convert to fraction form
   140,722/298,716 = 298,716/x
3. Step 3: Cross multiply
   140,722x = 298,716 × 298,716
4. Step 4: Simplify right side
   140,722x = 89,231,248,656
5. Step 5: Solve for x
   x = 89,231,248,656/140,722
6. Step 6: Final answer
   x = 634,095.94