Finding the Third Proportional to 447,870 and 671,522

Step by Step Solution

1. Step 1: Write the proportion equation
   447,870 : 671,522 = 671,522 : x
2. Step 2: Convert to fraction form
   447,870/671,522 = 671,522/x
3. Step 3: Cross multiply
   447,870x = 671,522 × 671,522
4. Step 4: Simplify right side
   447,870x = 450,941,796,484
5. Step 5: Solve for x
   x = 450,941,796,484/447,870
6. Step 6: Final answer
   x = 1,006,858.68