Finding the Third Proportional to 619,290 and 957,111

Step by Step Solution

1. Step 1: Write the proportion equation
   619,290 : 957,111 = 957,111 : x
2. Step 2: Convert to fraction form
   619,290/957,111 = 957,111/x
3. Step 3: Cross multiply
   619,290x = 957,111 × 957,111
4. Step 4: Simplify right side
   619,290x = 916,061,466,321
5. Step 5: Solve for x
   x = 916,061,466,321/619,290
6. Step 6: Final answer
   x = 1,479,212.43