Finding the Third Proportional to 397,225.50 and 868,722

Step by Step Solution

1. Step 1: Write the proportion equation
   397,225.50 : 868,722 = 868,722 : x
2. Step 2: Convert to fraction form
   397,225.50/868,722 = 868,722/x
3. Step 3: Cross multiply
   397,225.50x = 868,722 × 868,722
4. Step 4: Simplify right side
   397,225.50x = 754,677,913,284
5. Step 5: Solve for x
   x = 754,677,913,284/397,225.50
6. Step 6: Final answer
   x = 1,899,872.78