Finding the Third Proportional to 55,314.50 and 85,422.75

Step by Step Solution

1. Step 1: Write the proportion equation
   55,314.50 : 85,422.75 = 85,422.75 : x
2. Step 2: Convert to fraction form
   55,314.50/85,422.75 = 85,422.75/x
3. Step 3: Cross multiply
   55,314.50x = 85,422.75 × 85,422.75
4. Step 4: Simplify right side
   55,314.50x = 7,297,046,217.56
5. Step 5: Solve for x
   x = 7,297,046,217.56/55,314.50
6. Step 6: Final answer
   x = 131,919.23