Finding the Third Proportional to 423,780 and 928,488

Step by Step Solution

1. Step 1: Write the proportion equation
   423,780 : 928,488 = 928,488 : x
2. Step 2: Convert to fraction form
   423,780/928,488 = 928,488/x
3. Step 3: Cross multiply
   423,780x = 928,488 × 928,488
4. Step 4: Simplify right side
   423,780x = 862,089,966,144
5. Step 5: Solve for x
   x = 862,089,966,144/423,780
6. Step 6: Final answer
   x = 2,034,286.58