Finding the Third Proportional to 619,322 and 905,086

Step by Step Solution

1. Step 1: Write the proportion equation
   619,322 : 905,086 = 905,086 : x
2. Step 2: Convert to fraction form
   619,322/905,086 = 905,086/x
3. Step 3: Cross multiply
   619,322x = 905,086 × 905,086
4. Step 4: Simplify right side
   619,322x = 819,180,667,396
5. Step 5: Solve for x
   x = 819,180,667,396/619,322
6. Step 6: Final answer
   x = 1,322,705.58