Finding the Third Proportional to 380,119.50 and 816,395

Step by Step Solution

1. Step 1: Write the proportion equation
   380,119.50 : 816,395 = 816,395 : x
2. Step 2: Convert to fraction form
   380,119.50/816,395 = 816,395/x
3. Step 3: Cross multiply
   380,119.50x = 816,395 × 816,395
4. Step 4: Simplify right side
   380,119.50x = 666,500,796,025
5. Step 5: Solve for x
   x = 666,500,796,025/380,119.50
6. Step 6: Final answer
   x = 1,753,398.07