Finding the Third Proportional to 68,041.50 and 105,789

Step by Step Solution

1. Step 1: Write the proportion equation
   68,041.50 : 105,789 = 105,789 : x
2. Step 2: Convert to fraction form
   68,041.50/105,789 = 105,789/x
3. Step 3: Cross multiply
   68,041.50x = 105,789 × 105,789
4. Step 4: Simplify right side
   68,041.50x = 11,191,312,521
5. Step 5: Solve for x
   x = 11,191,312,521/68,041.50
6. Step 6: Final answer
   x = 164,477.75