Finding the Third Proportional to 678,040 and 1,050,549

Step by Step Solution

1. Step 1: Write the proportion equation
   678,040 : 1,050,549 = 1,050,549 : x
2. Step 2: Convert to fraction form
   678,040/1,050,549 = 1,050,549/x
3. Step 3: Cross multiply
   678,040x = 1,050,549 × 1,050,549
4. Step 4: Simplify right side
   678,040x = 1,103,653,201,401
5. Step 5: Solve for x
   x = 1,103,653,201,401/678,040
6. Step 6: Final answer
   x = 1,627,711.05