Finding the Third Proportional to 592,688 and 1,280,142

Step by Step Solution

1. Step 1: Write the proportion equation
   592,688 : 1,280,142 = 1,280,142 : x
2. Step 2: Convert to fraction form
   592,688/1,280,142 = 1,280,142/x
3. Step 3: Cross multiply
   592,688x = 1,280,142 × 1,280,142
4. Step 4: Simplify right side
   592,688x = 1,638,763,540,164
5. Step 5: Solve for x
   x = 1,638,763,540,164/592,688
6. Step 6: Final answer
   x = 2,764,968.31