Finding the Third Proportional to 187,696.50 and 404,920.50

Step by Step Solution

1. Step 1: Write the proportion equation
   187,696.50 : 404,920.50 = 404,920.50 : x
2. Step 2: Convert to fraction form
   187,696.50/404,920.50 = 404,920.50/x
3. Step 3: Cross multiply
   187,696.50x = 404,920.50 × 404,920.50
4. Step 4: Simplify right side
   187,696.50x = 163,960,611,320.25
5. Step 5: Solve for x
   x = 163,960,611,320.25/187,696.50
6. Step 6: Final answer
   x = 873,541.12