Finding the Third Proportional to 55,314 and 85,422

Step by Step Solution

1. Step 1: Write the proportion equation
   55,314 : 85,422 = 85,422 : x
2. Step 2: Convert to fraction form
   55,314/85,422 = 85,422/x
3. Step 3: Cross multiply
   55,314x = 85,422 × 85,422
4. Step 4: Simplify right side
   55,314x = 7,296,918,084
5. Step 5: Solve for x
   x = 7,296,918,084/55,314
6. Step 6: Final answer
   x = 131,918.11