Finding the Third Proportional to 641,010 and 928,443

Step by Step Solution

1. Step 1: Write the proportion equation
   641,010 : 928,443 = 928,443 : x
2. Step 2: Convert to fraction form
   641,010/928,443 = 928,443/x
3. Step 3: Cross multiply
   641,010x = 928,443 × 928,443
4. Step 4: Simplify right side
   641,010x = 862,006,404,249
5. Step 5: Solve for x
   x = 862,006,404,249/641,010
6. Step 6: Final answer
   x = 1,344,762.80