Finding the Third Proportional to 828,628 and 1,254,144

Step by Step Solution

1. Step 1: Write the proportion equation
   828,628 : 1,254,144 = 1,254,144 : x
2. Step 2: Convert to fraction form
   828,628/1,254,144 = 1,254,144/x
3. Step 3: Cross multiply
   828,628x = 1,254,144 × 1,254,144
4. Step 4: Simplify right side
   828,628x = 1,572,877,172,736
5. Step 5: Solve for x
   x = 1,572,877,172,736/828,628
6. Step 6: Final answer
   x = 1,898,170.44