Finding the Third Proportional to 67,392 and 105,709.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,392 : 105,709.50 = 105,709.50 : x
2. Step 2: Convert to fraction form
   67,392/105,709.50 = 105,709.50/x
3. Step 3: Cross multiply
   67,392x = 105,709.50 × 105,709.50
4. Step 4: Simplify right side
   67,392x = 11,174,498,390.25
5. Step 5: Solve for x
   x = 11,174,498,390.25/67,392
6. Step 6: Final answer
   x = 165,813.43