Finding the Third Proportional to 55,981.13 and 86,676.19

Step by Step Solution

1. Step 1: Write the proportion equation
   55,981.13 : 86,676.19 = 86,676.19 : x
2. Step 2: Convert to fraction form
   55,981.13/86,676.19 = 86,676.19/x
3. Step 3: Cross multiply
   55,981.13x = 86,676.19 × 86,676.19
4. Step 4: Simplify right side
   55,981.13x = 7,512,761,479.54
5. Step 5: Solve for x
   x = 7,512,761,479.54/55,981.13
6. Step 6: Final answer
   x = 134,201.69