Finding the Third Proportional to 158,611 and 344,870

Step by Step Solution

1. Step 1: Write the proportion equation
   158,611 : 344,870 = 344,870 : x
2. Step 2: Convert to fraction form
   158,611/344,870 = 344,870/x
3. Step 3: Cross multiply
   158,611x = 344,870 × 344,870
4. Step 4: Simplify right side
   158,611x = 118,935,316,900
5. Step 5: Solve for x
   x = 118,935,316,900/158,611
6. Step 6: Final answer
   x = 749,855.41