Finding the Third Proportional to 1,292,700 and 2,831,640

Step by Step Solution

1. Step 1: Write the proportion equation
   1,292,700 : 2,831,640 = 2,831,640 : x
2. Step 2: Convert to fraction form
   1,292,700/2,831,640 = 2,831,640/x
3. Step 3: Cross multiply
   1,292,700x = 2,831,640 × 2,831,640
4. Step 4: Simplify right side
   1,292,700x = 8,018,185,089,600
5. Step 5: Solve for x
   x = 8,018,185,089,600/1,292,700
6. Step 6: Final answer
   x = 6,202,665.03