Finding the Third Proportional to 61,179 and 86,155.50

Step by Step Solution

1. Step 1: Write the proportion equation
   61,179 : 86,155.50 = 86,155.50 : x
2. Step 2: Convert to fraction form
   61,179/86,155.50 = 86,155.50/x
3. Step 3: Cross multiply
   61,179x = 86,155.50 × 86,155.50
4. Step 4: Simplify right side
   61,179x = 7,422,770,180.25
5. Step 5: Solve for x
   x = 7,422,770,180.25/61,179
6. Step 6: Final answer
   x = 121,328.73