Finding the Third Proportional to 619,416 and 946,890

Step by Step Solution

1. Step 1: Write the proportion equation
   619,416 : 946,890 = 946,890 : x
2. Step 2: Convert to fraction form
   619,416/946,890 = 946,890/x
3. Step 3: Cross multiply
   619,416x = 946,890 × 946,890
4. Step 4: Simplify right side
   619,416x = 896,600,672,100
5. Step 5: Solve for x
   x = 896,600,672,100/619,416
6. Step 6: Final answer
   x = 1,447,493.56