Finding the Third Proportional to 349,114.50 and 815,868

Step by Step Solution

1. Step 1: Write the proportion equation
   349,114.50 : 815,868 = 815,868 : x
2. Step 2: Convert to fraction form
   349,114.50/815,868 = 815,868/x
3. Step 3: Cross multiply
   349,114.50x = 815,868 × 815,868
4. Step 4: Simplify right side
   349,114.50x = 665,640,593,424
5. Step 5: Solve for x
   x = 665,640,593,424/349,114.50
6. Step 6: Final answer
   x = 1,906,654.10