Finding the Third Proportional to 634,642 and 1,321,892

Step by Step Solution

1. Step 1: Write the proportion equation
   634,642 : 1,321,892 = 1,321,892 : x
2. Step 2: Convert to fraction form
   634,642/1,321,892 = 1,321,892/x
3. Step 3: Cross multiply
   634,642x = 1,321,892 × 1,321,892
4. Step 4: Simplify right side
   634,642x = 1,747,398,459,664
5. Step 5: Solve for x
   x = 1,747,398,459,664/634,642
6. Step 6: Final answer
   x = 2,753,360.89