Finding the Third Proportional to 68,816.25 and 105,410.25

Step by Step Solution

1. Step 1: Write the proportion equation
   68,816.25 : 105,410.25 = 105,410.25 : x
2. Step 2: Convert to fraction form
   68,816.25/105,410.25 = 105,410.25/x
3. Step 3: Cross multiply
   68,816.25x = 105,410.25 × 105,410.25
4. Step 4: Simplify right side
   68,816.25x = 11,111,320,805.06
5. Step 5: Solve for x
   x = 11,111,320,805.06/68,816.25
6. Step 6: Final answer
   x = 161,463.62