Finding the Third Proportional to 73,978.50 and 104,678

Step by Step Solution

1. Step 1: Write the proportion equation
   73,978.50 : 104,678 = 104,678 : x
2. Step 2: Convert to fraction form
   73,978.50/104,678 = 104,678/x
3. Step 3: Cross multiply
   73,978.50x = 104,678 × 104,678
4. Step 4: Simplify right side
   73,978.50x = 10,957,483,684
5. Step 5: Solve for x
   x = 10,957,483,684/73,978.50
6. Step 6: Final answer
   x = 148,117.14