Finding the Third Proportional to 67,699 and 105,868.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,699 : 105,868.50 = 105,868.50 : x
2. Step 2: Convert to fraction form
   67,699/105,868.50 = 105,868.50/x
3. Step 3: Cross multiply
   67,699x = 105,868.50 × 105,868.50
4. Step 4: Simplify right side
   67,699x = 11,208,139,292.25
5. Step 5: Solve for x
   x = 11,208,139,292.25/67,699
6. Step 6: Final answer
   x = 165,558.42