Finding the Third Proportional to 20,547 and 41,998.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,547 : 41,998.50 = 41,998.50 : x
2. Step 2: Convert to fraction form
   20,547/41,998.50 = 41,998.50/x
3. Step 3: Cross multiply
   20,547x = 41,998.50 × 41,998.50
4. Step 4: Simplify right side
   20,547x = 1,763,874,002.25
5. Step 5: Solve for x
   x = 1,763,874,002.25/20,547
6. Step 6: Final answer
   x = 85,845.82