Finding the Third Proportional to 655,472 and 996,890

Step by Step Solution

1. Step 1: Write the proportion equation
   655,472 : 996,890 = 996,890 : x
2. Step 2: Convert to fraction form
   655,472/996,890 = 996,890/x
3. Step 3: Cross multiply
   655,472x = 996,890 × 996,890
4. Step 4: Simplify right side
   655,472x = 993,789,672,100
5. Step 5: Solve for x
   x = 993,789,672,100/655,472
6. Step 6: Final answer
   x = 1,516,143.59