Finding the Third Proportional to 384,676.50 and 840,156

Step by Step Solution

1. Step 1: Write the proportion equation
   384,676.50 : 840,156 = 840,156 : x
2. Step 2: Convert to fraction form
   384,676.50/840,156 = 840,156/x
3. Step 3: Cross multiply
   384,676.50x = 840,156 × 840,156
4. Step 4: Simplify right side
   384,676.50x = 705,862,104,336
5. Step 5: Solve for x
   x = 705,862,104,336/384,676.50
6. Step 6: Final answer
   x = 1,834,949.90