Finding the Third Proportional to 42,814.50 and 68,185.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,814.50 : 68,185.50 = 68,185.50 : x
2. Step 2: Convert to fraction form
   42,814.50/68,185.50 = 68,185.50/x
3. Step 3: Cross multiply
   42,814.50x = 68,185.50 × 68,185.50
4. Step 4: Simplify right side
   42,814.50x = 4,649,262,410.25
5. Step 5: Solve for x
   x = 4,649,262,410.25/42,814.50
6. Step 6: Final answer
   x = 108,590.84