Finding the Third Proportional to 160,602 and 345,870

Step by Step Solution

1. Step 1: Write the proportion equation
   160,602 : 345,870 = 345,870 : x
2. Step 2: Convert to fraction form
   160,602/345,870 = 345,870/x
3. Step 3: Cross multiply
   160,602x = 345,870 × 345,870
4. Step 4: Simplify right side
   160,602x = 119,626,056,900
5. Step 5: Solve for x
   x = 119,626,056,900/160,602
6. Step 6: Final answer
   x = 744,860.32