Finding the Third Proportional to 187,428.94 and 404,838

Step by Step Solution

1. Step 1: Write the proportion equation
   187,428.94 : 404,838 = 404,838 : x
2. Step 2: Convert to fraction form
   187,428.94/404,838 = 404,838/x
3. Step 3: Cross multiply
   187,428.94x = 404,838 × 404,838
4. Step 4: Simplify right side
   187,428.94x = 163,893,806,244
5. Step 5: Solve for x
   x = 163,893,806,244/187,428.94
6. Step 6: Final answer
   x = 874,431.71