Finding the Third Proportional to 61,169.06 and 86,138.44

Step by Step Solution

1. Step 1: Write the proportion equation
   61,169.06 : 86,138.44 = 86,138.44 : x
2. Step 2: Convert to fraction form
   61,169.06/86,138.44 = 86,138.44/x
3. Step 3: Cross multiply
   61,169.06x = 86,138.44 × 86,138.44
4. Step 4: Simplify right side
   61,169.06x = 7,419,830,414.94
5. Step 5: Solve for x
   x = 7,419,830,414.94/61,169.06
6. Step 6: Final answer
   x = 121,300.38