Finding the Third Proportional to 490,433 and 749,906

Step by Step Solution

1. Step 1: Write the proportion equation
   490,433 : 749,906 = 749,906 : x
2. Step 2: Convert to fraction form
   490,433/749,906 = 749,906/x
3. Step 3: Cross multiply
   490,433x = 749,906 × 749,906
4. Step 4: Simplify right side
   490,433x = 562,359,008,836
5. Step 5: Solve for x
   x = 562,359,008,836/490,433
6. Step 6: Final answer
   x = 1,146,658.18