Finding the Third Proportional to 677,316 and 928,782

Step by Step Solution

1. Step 1: Write the proportion equation
   677,316 : 928,782 = 928,782 : x
2. Step 2: Convert to fraction form
   677,316/928,782 = 928,782/x
3. Step 3: Cross multiply
   677,316x = 928,782 × 928,782
4. Step 4: Simplify right side
   677,316x = 862,636,003,524
5. Step 5: Solve for x
   x = 862,636,003,524/677,316
6. Step 6: Final answer
   x = 1,273,609.37