Finding the Third Proportional to 67,019.63 and 103,678.31

Step by Step Solution

1. Step 1: Write the proportion equation
   67,019.63 : 103,678.31 = 103,678.31 : x
2. Step 2: Convert to fraction form
   67,019.63/103,678.31 = 103,678.31/x
3. Step 3: Cross multiply
   67,019.63x = 103,678.31 × 103,678.31
4. Step 4: Simplify right side
   67,019.63x = 10,749,192,482.85
5. Step 5: Solve for x
   x = 10,749,192,482.85/67,019.63
6. Step 6: Final answer
   x = 160,388.73