Finding the Third Proportional to 132,460 and 287,496

Step by Step Solution

1. Step 1: Write the proportion equation
   132,460 : 287,496 = 287,496 : x
2. Step 2: Convert to fraction form
   132,460/287,496 = 287,496/x
3. Step 3: Cross multiply
   132,460x = 287,496 × 287,496
4. Step 4: Simplify right side
   132,460x = 82,653,950,016
5. Step 5: Solve for x
   x = 82,653,950,016/132,460
6. Step 6: Final answer
   x = 623,991.77