Finding the Third Proportional to 55,386.75 and 85,924.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,386.75 : 85,924.50 = 85,924.50 : x
2. Step 2: Convert to fraction form
   55,386.75/85,924.50 = 85,924.50/x
3. Step 3: Cross multiply
   55,386.75x = 85,924.50 × 85,924.50
4. Step 4: Simplify right side
   55,386.75x = 7,383,019,700.25
5. Step 5: Solve for x
   x = 7,383,019,700.25/55,386.75
6. Step 6: Final answer
   x = 133,299.38