Finding the Third Proportional to 635,014 and 905,222

Step by Step Solution

1. Step 1: Write the proportion equation
   635,014 : 905,222 = 905,222 : x
2. Step 2: Convert to fraction form
   635,014/905,222 = 905,222/x
3. Step 3: Cross multiply
   635,014x = 905,222 × 905,222
4. Step 4: Simplify right side
   635,014x = 819,426,869,284
5. Step 5: Solve for x
   x = 819,426,869,284/635,014
6. Step 6: Final answer
   x = 1,290,407.56