Finding the Third Proportional to 423,577 and 908,570

Step by Step Solution

1. Step 1: Write the proportion equation
   423,577 : 908,570 = 908,570 : x
2. Step 2: Convert to fraction form
   423,577/908,570 = 908,570/x
3. Step 3: Cross multiply
   423,577x = 908,570 × 908,570
4. Step 4: Simplify right side
   423,577x = 825,499,444,900
5. Step 5: Solve for x
   x = 825,499,444,900/423,577
6. Step 6: Final answer
   x = 1,948,876.93