Finding the Third Proportional to 133,095 and 287,007

Step by Step Solution

1. Step 1: Write the proportion equation
   133,095 : 287,007 = 287,007 : x
2. Step 2: Convert to fraction form
   133,095/287,007 = 287,007/x
3. Step 3: Cross multiply
   133,095x = 287,007 × 287,007
4. Step 4: Simplify right side
   133,095x = 82,373,018,049
5. Step 5: Solve for x
   x = 82,373,018,049/133,095
6. Step 6: Final answer
   x = 618,903.93