Finding the Third Proportional to 128,250 and 191,657.25

Step by Step Solution

1. Step 1: Write the proportion equation
   128,250 : 191,657.25 = 191,657.25 : x
2. Step 2: Convert to fraction form
   128,250/191,657.25 = 191,657.25/x
3. Step 3: Cross multiply
   128,250x = 191,657.25 × 191,657.25
4. Step 4: Simplify right side
   128,250x = 36,732,501,477.56
5. Step 5: Solve for x
   x = 36,732,501,477.56/128,250
6. Step 6: Final answer
   x = 286,413.27