Finding the Third Proportional to 68,558 and 152,870

Step by Step Solution

1. Step 1: Write the proportion equation
   68,558 : 152,870 = 152,870 : x
2. Step 2: Convert to fraction form
   68,558/152,870 = 152,870/x
3. Step 3: Cross multiply
   68,558x = 152,870 × 152,870
4. Step 4: Simplify right side
   68,558x = 23,369,236,900
5. Step 5: Solve for x
   x = 23,369,236,900/68,558
6. Step 6: Final answer
   x = 340,868.12