Finding the Third Proportional to 384,787.50 and 843,456

Step by Step Solution

1. Step 1: Write the proportion equation
   384,787.50 : 843,456 = 843,456 : x
2. Step 2: Convert to fraction form
   384,787.50/843,456 = 843,456/x
3. Step 3: Cross multiply
   384,787.50x = 843,456 × 843,456
4. Step 4: Simplify right side
   384,787.50x = 711,418,023,936
5. Step 5: Solve for x
   x = 711,418,023,936/384,787.50
6. Step 6: Final answer
   x = 1,848,859.50