Finding the Third Proportional to 132,810 and 287,744

Step by Step Solution

1. Step 1: Write the proportion equation
   132,810 : 287,744 = 287,744 : x
2. Step 2: Convert to fraction form
   132,810/287,744 = 287,744/x
3. Step 3: Cross multiply
   132,810x = 287,744 × 287,744
4. Step 4: Simplify right side
   132,810x = 82,796,609,536
5. Step 5: Solve for x
   x = 82,796,609,536/132,810
6. Step 6: Final answer
   x = 623,421.50