Finding the Third Proportional to 133,004 and 287,109

Step by Step Solution

1. Step 1: Write the proportion equation
   133,004 : 287,109 = 287,109 : x
2. Step 2: Convert to fraction form
   133,004/287,109 = 287,109/x
3. Step 3: Cross multiply
   133,004x = 287,109 × 287,109
4. Step 4: Simplify right side
   133,004x = 82,431,577,881
5. Step 5: Solve for x
   x = 82,431,577,881/133,004
6. Step 6: Final answer
   x = 619,767.66