Finding the Third Proportional to 69,680 and 105,168

Step by Step Solution

1. Step 1: Write the proportion equation
   69,680 : 105,168 = 105,168 : x
2. Step 2: Convert to fraction form
   69,680/105,168 = 105,168/x
3. Step 3: Cross multiply
   69,680x = 105,168 × 105,168
4. Step 4: Simplify right side
   69,680x = 11,060,308,224
5. Step 5: Solve for x
   x = 11,060,308,224/69,680
6. Step 6: Final answer
   x = 158,730.03