Finding the Third Proportional to 55,831.50 and 85,052.25

Step by Step Solution

1. Step 1: Write the proportion equation
   55,831.50 : 85,052.25 = 85,052.25 : x
2. Step 2: Convert to fraction form
   55,831.50/85,052.25 = 85,052.25/x
3. Step 3: Cross multiply
   55,831.50x = 85,052.25 × 85,052.25
4. Step 4: Simplify right side
   55,831.50x = 7,233,885,230.06
5. Step 5: Solve for x
   x = 7,233,885,230.06/55,831.50
6. Step 6: Final answer
   x = 129,566.38