Finding the Third Proportional to 678,149.50 and 1,049,111.75

Step by Step Solution

1. Step 1: Write the proportion equation
   678,149.50 : 1,049,111.75 = 1,049,111.75 : x
2. Step 2: Convert to fraction form
   678,149.50/1,049,111.75 = 1,049,111.75/x
3. Step 3: Cross multiply
   678,149.50x = 1,049,111.75 × 1,049,111.75
4. Step 4: Simplify right side
   678,149.50x = 1,100,635,463,988.06
5. Step 5: Solve for x
   x = 1,100,635,463,988.06/678,149.50
6. Step 6: Final answer
   x = 1,622,998.27