Finding the Third Proportional to 88,839 and 187,654.50

Step by Step Solution

1. Step 1: Write the proportion equation
   88,839 : 187,654.50 = 187,654.50 : x
2. Step 2: Convert to fraction form
   88,839/187,654.50 = 187,654.50/x
3. Step 3: Cross multiply
   88,839x = 187,654.50 × 187,654.50
4. Step 4: Simplify right side
   88,839x = 35,214,211,370.25
5. Step 5: Solve for x
   x = 35,214,211,370.25/88,839
6. Step 6: Final answer
   x = 396,382.35