Finding the Third Proportional to 382,636.50 and 831,705

Step by Step Solution

1. Step 1: Write the proportion equation
   382,636.50 : 831,705 = 831,705 : x
2. Step 2: Convert to fraction form
   382,636.50/831,705 = 831,705/x
3. Step 3: Cross multiply
   382,636.50x = 831,705 × 831,705
4. Step 4: Simplify right side
   382,636.50x = 691,733,207,025
5. Step 5: Solve for x
   x = 691,733,207,025/382,636.50
6. Step 6: Final answer
   x = 1,807,807.69