Finding the Third Proportional to 65,808 and 105,979.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,808 : 105,979.50 = 105,979.50 : x
2. Step 2: Convert to fraction form
   65,808/105,979.50 = 105,979.50/x
3. Step 3: Cross multiply
   65,808x = 105,979.50 × 105,979.50
4. Step 4: Simplify right side
   65,808x = 11,231,654,420.25
5. Step 5: Solve for x
   x = 11,231,654,420.25/65,808
6. Step 6: Final answer
   x = 170,673.09