Finding the Third Proportional to 67,999.50 and 102,613.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,999.50 : 102,613.50 = 102,613.50 : x
2. Step 2: Convert to fraction form
   67,999.50/102,613.50 = 102,613.50/x
3. Step 3: Cross multiply
   67,999.50x = 102,613.50 × 102,613.50
4. Step 4: Simplify right side
   67,999.50x = 10,529,530,382.25
5. Step 5: Solve for x
   x = 10,529,530,382.25/67,999.50
6. Step 6: Final answer
   x = 154,847.17