Finding the Third Proportional to 376,046.50 and 820,688

Step by Step Solution

1. Step 1: Write the proportion equation
   376,046.50 : 820,688 = 820,688 : x
2. Step 2: Convert to fraction form
   376,046.50/820,688 = 820,688/x
3. Step 3: Cross multiply
   376,046.50x = 820,688 × 820,688
4. Step 4: Simplify right side
   376,046.50x = 673,528,793,344
5. Step 5: Solve for x
   x = 673,528,793,344/376,046.50
6. Step 6: Final answer
   x = 1,791,078.48