Finding the Third Proportional to 384,736.50 and 834,678

Step by Step Solution

1. Step 1: Write the proportion equation
   384,736.50 : 834,678 = 834,678 : x
2. Step 2: Convert to fraction form
   384,736.50/834,678 = 834,678/x
3. Step 3: Cross multiply
   384,736.50x = 834,678 × 834,678
4. Step 4: Simplify right side
   384,736.50x = 696,687,363,684
5. Step 5: Solve for x
   x = 696,687,363,684/384,736.50
6. Step 6: Final answer
   x = 1,810,816.92