Finding the Third Proportional to 800,508 and 1,238,170

Step by Step Solution

1. Step 1: Write the proportion equation
   800,508 : 1,238,170 = 1,238,170 : x
2. Step 2: Convert to fraction form
   800,508/1,238,170 = 1,238,170/x
3. Step 3: Cross multiply
   800,508x = 1,238,170 × 1,238,170
4. Step 4: Simplify right side
   800,508x = 1,533,064,948,900
5. Step 5: Solve for x
   x = 1,533,064,948,900/800,508
6. Step 6: Final answer
   x = 1,915,115.09