Finding the Third Proportional to 619,360 and 905,152

Step by Step Solution

1. Step 1: Write the proportion equation
   619,360 : 905,152 = 905,152 : x
2. Step 2: Convert to fraction form
   619,360/905,152 = 905,152/x
3. Step 3: Cross multiply
   619,360x = 905,152 × 905,152
4. Step 4: Simplify right side
   619,360x = 819,300,143,104
5. Step 5: Solve for x
   x = 819,300,143,104/619,360
6. Step 6: Final answer
   x = 1,322,817.33