Finding the Third Proportional to 21,124 and 30,693.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,124 : 30,693.50 = 30,693.50 : x
2. Step 2: Convert to fraction form
   21,124/30,693.50 = 30,693.50/x
3. Step 3: Cross multiply
   21,124x = 30,693.50 × 30,693.50
4. Step 4: Simplify right side
   21,124x = 942,090,942.25
5. Step 5: Solve for x
   x = 942,090,942.25/21,124
6. Step 6: Final answer
   x = 44,598.13