Finding the Third Proportional to 55,317.25 and 83,811.75

Step by Step Solution

1. Step 1: Write the proportion equation
   55,317.25 : 83,811.75 = 83,811.75 : x
2. Step 2: Convert to fraction form
   55,317.25/83,811.75 = 83,811.75/x
3. Step 3: Cross multiply
   55,317.25x = 83,811.75 × 83,811.75
4. Step 4: Simplify right side
   55,317.25x = 7,024,409,438.06
5. Step 5: Solve for x
   x = 7,024,409,438.06/55,317.25
6. Step 6: Final answer
   x = 126,984.07