Finding the Third Proportional to 9,803 and 21,317.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,803 : 21,317.50 = 21,317.50 : x
2. Step 2: Convert to fraction form
   9,803/21,317.50 = 21,317.50/x
3. Step 3: Cross multiply
   9,803x = 21,317.50 × 21,317.50
4. Step 4: Simplify right side
   9,803x = 454,435,806.25
5. Step 5: Solve for x
   x = 454,435,806.25/9,803
6. Step 6: Final answer
   x = 46,356.81