Finding the Third Proportional to 21,232.13 and 54,811.69

Step by Step Solution

1. Step 1: Write the proportion equation
   21,232.13 : 54,811.69 = 54,811.69 : x
2. Step 2: Convert to fraction form
   21,232.13/54,811.69 = 54,811.69/x
3. Step 3: Cross multiply
   21,232.13x = 54,811.69 × 54,811.69
4. Step 4: Simplify right side
   21,232.13x = 3,004,321,086.60
5. Step 5: Solve for x
   x = 3,004,321,086.60/21,232.13
6. Step 6: Final answer
   x = 141,498.84