Finding the Third Proportional to 21,189.94 and 31,024.69

Step by Step Solution

1. Step 1: Write the proportion equation
   21,189.94 : 31,024.69 = 31,024.69 : x
2. Step 2: Convert to fraction form
   21,189.94/31,024.69 = 31,024.69/x
3. Step 3: Cross multiply
   21,189.94x = 31,024.69 × 31,024.69
4. Step 4: Simplify right side
   21,189.94x = 962,531,234.47
5. Step 5: Solve for x
   x = 962,531,234.47/21,189.94
6. Step 6: Final answer
   x = 45,423.98