Finding the Third Proportional to 35,128.69 and 73,171.69

Step by Step Solution

1. Step 1: Write the proportion equation
   35,128.69 : 73,171.69 = 73,171.69 : x
2. Step 2: Convert to fraction form
   35,128.69/73,171.69 = 73,171.69/x
3. Step 3: Cross multiply
   35,128.69x = 73,171.69 × 73,171.69
4. Step 4: Simplify right side
   35,128.69x = 5,354,095,851.60
5. Step 5: Solve for x
   x = 5,354,095,851.60/35,128.69
6. Step 6: Final answer
   x = 152,413.77