Finding the Third Proportional to 403,064 and 602,488

Step by Step Solution

1. Step 1: Write the proportion equation
   403,064 : 602,488 = 602,488 : x
2. Step 2: Convert to fraction form
   403,064/602,488 = 602,488/x
3. Step 3: Cross multiply
   403,064x = 602,488 × 602,488
4. Step 4: Simplify right side
   403,064x = 362,991,790,144
5. Step 5: Solve for x
   x = 362,991,790,144/403,064
6. Step 6: Final answer
   x = 900,581.02