Finding the Third Proportional to 16,218.56 and 35,511.75

Step by Step Solution

1. Step 1: Write the proportion equation
   16,218.56 : 35,511.75 = 35,511.75 : x
2. Step 2: Convert to fraction form
   16,218.56/35,511.75 = 35,511.75/x
3. Step 3: Cross multiply
   16,218.56x = 35,511.75 × 35,511.75
4. Step 4: Simplify right side
   16,218.56x = 1,261,084,388.06
5. Step 5: Solve for x
   x = 1,261,084,388.06/16,218.56
6. Step 6: Final answer
   x = 77,755.62