Finding the Third Proportional to 4,543.31 and 9,802.69

Step by Step Solution

1. Step 1: Write the proportion equation
   4,543.31 : 9,802.69 = 9,802.69 : x
2. Step 2: Convert to fraction form
   4,543.31/9,802.69 = 9,802.69/x
3. Step 3: Cross multiply
   4,543.31x = 9,802.69 × 9,802.69
4. Step 4: Simplify right side
   4,543.31x = 96,092,682.22
5. Step 5: Solve for x
   x = 96,092,682.22/4,543.31
6. Step 6: Final answer
   x = 21,150.36