Finding the Third Proportional to 371,042 and 813,100

Step by Step Solution

1. Step 1: Write the proportion equation
   371,042 : 813,100 = 813,100 : x
2. Step 2: Convert to fraction form
   371,042/813,100 = 813,100/x
3. Step 3: Cross multiply
   371,042x = 813,100 × 813,100
4. Step 4: Simplify right side
   371,042x = 661,131,610,000
5. Step 5: Solve for x
   x = 661,131,610,000/371,042
6. Step 6: Final answer
   x = 1,781,824.19