Finding the Third Proportional to 10,203 and 21,631.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,203 : 21,631.50 = 21,631.50 : x
2. Step 2: Convert to fraction form
   10,203/21,631.50 = 21,631.50/x
3. Step 3: Cross multiply
   10,203x = 21,631.50 × 21,631.50
4. Step 4: Simplify right side
   10,203x = 467,921,792.25
5. Step 5: Solve for x
   x = 467,921,792.25/10,203
6. Step 6: Final answer
   x = 45,861.20