Finding the Third Proportional to 678,456 and 1,049,565

Step by Step Solution

1. Step 1: Write the proportion equation
   678,456 : 1,049,565 = 1,049,565 : x
2. Step 2: Convert to fraction form
   678,456/1,049,565 = 1,049,565/x
3. Step 3: Cross multiply
   678,456x = 1,049,565 × 1,049,565
4. Step 4: Simplify right side
   678,456x = 1,101,586,689,225
5. Step 5: Solve for x
   x = 1,101,586,689,225/678,456
6. Step 6: Final answer
   x = 1,623,667.10