Finding the Third Proportional to 403,740 and 849,300

Step by Step Solution

1. Step 1: Write the proportion equation
   403,740 : 849,300 = 849,300 : x
2. Step 2: Convert to fraction form
   403,740/849,300 = 849,300/x
3. Step 3: Cross multiply
   403,740x = 849,300 × 849,300
4. Step 4: Simplify right side
   403,740x = 721,310,490,000
5. Step 5: Solve for x
   x = 721,310,490,000/403,740
6. Step 6: Final answer
   x = 1,786,571.78