Finding the Third Proportional to 345,870 and 757,350

Step by Step Solution

1. Step 1: Write the proportion equation
   345,870 : 757,350 = 757,350 : x
2. Step 2: Convert to fraction form
   345,870/757,350 = 757,350/x
3. Step 3: Cross multiply
   345,870x = 757,350 × 757,350
4. Step 4: Simplify right side
   345,870x = 573,579,022,500
5. Step 5: Solve for x
   x = 573,579,022,500/345,870
6. Step 6: Final answer
   x = 1,658,365.93