Finding the Third Proportional to 641,806 and 1,374,696

Step by Step Solution

1. Step 1: Write the proportion equation
   641,806 : 1,374,696 = 1,374,696 : x
2. Step 2: Convert to fraction form
   641,806/1,374,696 = 1,374,696/x
3. Step 3: Cross multiply
   641,806x = 1,374,696 × 1,374,696
4. Step 4: Simplify right side
   641,806x = 1,889,789,092,416
5. Step 5: Solve for x
   x = 1,889,789,092,416/641,806
6. Step 6: Final answer
   x = 2,944,486.48