Finding the Third Proportional to 818,464 and 1,262,688

Step by Step Solution

1. Step 1: Write the proportion equation
   818,464 : 1,262,688 = 1,262,688 : x
2. Step 2: Convert to fraction form
   818,464/1,262,688 = 1,262,688/x
3. Step 3: Cross multiply
   818,464x = 1,262,688 × 1,262,688
4. Step 4: Simplify right side
   818,464x = 1,594,380,985,344
5. Step 5: Solve for x
   x = 1,594,380,985,344/818,464
6. Step 6: Final answer
   x = 1,948,016.02