Finding the Third Proportional to 55,357.50 and 83,021.75

Step by Step Solution

1. Step 1: Write the proportion equation
   55,357.50 : 83,021.75 = 83,021.75 : x
2. Step 2: Convert to fraction form
   55,357.50/83,021.75 = 83,021.75/x
3. Step 3: Cross multiply
   55,357.50x = 83,021.75 × 83,021.75
4. Step 4: Simplify right side
   55,357.50x = 6,892,610,973.06
5. Step 5: Solve for x
   x = 6,892,610,973.06/55,357.50
6. Step 6: Final answer
   x = 124,510.88