Finding the Third Proportional to 648,849 and 1,387,374

Step by Step Solution

1. Step 1: Write the proportion equation
   648,849 : 1,387,374 = 1,387,374 : x
2. Step 2: Convert to fraction form
   648,849/1,387,374 = 1,387,374/x
3. Step 3: Cross multiply
   648,849x = 1,387,374 × 1,387,374
4. Step 4: Simplify right side
   648,849x = 1,924,806,615,876
5. Step 5: Solve for x
   x = 1,924,806,615,876/648,849
6. Step 6: Final answer
   x = 2,966,493.92