Finding the Third Proportional to 828,605 and 1,254,116

Step by Step Solution

1. Step 1: Write the proportion equation
   828,605 : 1,254,116 = 1,254,116 : x
2. Step 2: Convert to fraction form
   828,605/1,254,116 = 1,254,116/x
3. Step 3: Cross multiply
   828,605x = 1,254,116 × 1,254,116
4. Step 4: Simplify right side
   828,605x = 1,572,806,941,456
5. Step 5: Solve for x
   x = 1,572,806,941,456/828,605
6. Step 6: Final answer
   x = 1,898,138.37