Finding the Third Proportional to 56,079.75 and 86,198.38

Step by Step Solution

1. Step 1: Write the proportion equation
   56,079.75 : 86,198.38 = 86,198.38 : x
2. Step 2: Convert to fraction form
   56,079.75/86,198.38 = 86,198.38/x
3. Step 3: Cross multiply
   56,079.75x = 86,198.38 × 86,198.38
4. Step 4: Simplify right side
   56,079.75x = 7,430,159,852.64
5. Step 5: Solve for x
   x = 7,430,159,852.64/56,079.75
6. Step 6: Final answer
   x = 132,492.74