Finding the Third Proportional to 9,959 and 21,473.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,959 : 21,473.50 = 21,473.50 : x
2. Step 2: Convert to fraction form
   9,959/21,473.50 = 21,473.50/x
3. Step 3: Cross multiply
   9,959x = 21,473.50 × 21,473.50
4. Step 4: Simplify right side
   9,959x = 461,111,202.25
5. Step 5: Solve for x
   x = 461,111,202.25/9,959
6. Step 6: Final answer
   x = 46,300.95