Finding the Third Proportional to 403,820 and 849,466

Step by Step Solution

1. Step 1: Write the proportion equation
   403,820 : 849,466 = 849,466 : x
2. Step 2: Convert to fraction form
   403,820/849,466 = 849,466/x
3. Step 3: Cross multiply
   403,820x = 849,466 × 849,466
4. Step 4: Simplify right side
   403,820x = 721,592,485,156
5. Step 5: Solve for x
   x = 721,592,485,156/403,820
6. Step 6: Final answer
   x = 1,786,916.16