Finding the Third Proportional to 619,364 and 905,158

Step by Step Solution

1. Step 1: Write the proportion equation
   619,364 : 905,158 = 905,158 : x
2. Step 2: Convert to fraction form
   619,364/905,158 = 905,158/x
3. Step 3: Cross multiply
   619,364x = 905,158 × 905,158
4. Step 4: Simplify right side
   619,364x = 819,311,004,964
5. Step 5: Solve for x
   x = 819,311,004,964/619,364
6. Step 6: Final answer
   x = 1,322,826.33