Finding the Third Proportional to 131,463 and 287,804

Step by Step Solution

1. Step 1: Write the proportion equation
   131,463 : 287,804 = 287,804 : x
2. Step 2: Convert to fraction form
   131,463/287,804 = 287,804/x
3. Step 3: Cross multiply
   131,463x = 287,804 × 287,804
4. Step 4: Simplify right side
   131,463x = 82,831,142,416
5. Step 5: Solve for x
   x = 82,831,142,416/131,463
6. Step 6: Final answer
   x = 630,071.90