Finding the Third Proportional to 403,647 and 849,115.50

Step by Step Solution

1. Step 1: Write the proportion equation
   403,647 : 849,115.50 = 849,115.50 : x
2. Step 2: Convert to fraction form
   403,647/849,115.50 = 849,115.50/x
3. Step 3: Cross multiply
   403,647x = 849,115.50 × 849,115.50
4. Step 4: Simplify right side
   403,647x = 720,997,132,340.25
5. Step 5: Solve for x
   x = 720,997,132,340.25/403,647
6. Step 6: Final answer
   x = 1,786,207.09