Finding the Third Proportional to 428,945 and 928,498

Step by Step Solution

1. Step 1: Write the proportion equation
   428,945 : 928,498 = 928,498 : x
2. Step 2: Convert to fraction form
   428,945/928,498 = 928,498/x
3. Step 3: Cross multiply
   428,945x = 928,498 × 928,498
4. Step 4: Simplify right side
   428,945x = 862,108,536,004
5. Step 5: Solve for x
   x = 862,108,536,004/428,945
6. Step 6: Final answer
   x = 2,009,834.68