Finding the Third Proportional to 67,615.50 and 105,108.75

Step by Step Solution

1. Step 1: Write the proportion equation
   67,615.50 : 105,108.75 = 105,108.75 : x
2. Step 2: Convert to fraction form
   67,615.50/105,108.75 = 105,108.75/x
3. Step 3: Cross multiply
   67,615.50x = 105,108.75 × 105,108.75
4. Step 4: Simplify right side
   67,615.50x = 11,047,849,326.56
5. Step 5: Solve for x
   x = 11,047,849,326.56/67,615.50
6. Step 6: Final answer
   x = 163,392.26