Finding the Third Proportional to 631,878 and 1,364,898

Step by Step Solution

1. Step 1: Write the proportion equation
   631,878 : 1,364,898 = 1,364,898 : x
2. Step 2: Convert to fraction form
   631,878/1,364,898 = 1,364,898/x
3. Step 3: Cross multiply
   631,878x = 1,364,898 × 1,364,898
4. Step 4: Simplify right side
   631,878x = 1,862,946,550,404
5. Step 5: Solve for x
   x = 1,862,946,550,404/631,878
6. Step 6: Final answer
   x = 2,948,269.37