Finding the Third Proportional to 68,870 and 105,344

Step by Step Solution

1. Step 1: Write the proportion equation
   68,870 : 105,344 = 105,344 : x
2. Step 2: Convert to fraction form
   68,870/105,344 = 105,344/x
3. Step 3: Cross multiply
   68,870x = 105,344 × 105,344
4. Step 4: Simplify right side
   68,870x = 11,097,358,336
5. Step 5: Solve for x
   x = 11,097,358,336/68,870
6. Step 6: Final answer
   x = 161,134.87