Finding the Third Proportional to 355,285.50 and 546,105

Step by Step Solution

1. Step 1: Write the proportion equation
   355,285.50 : 546,105 = 546,105 : x
2. Step 2: Convert to fraction form
   355,285.50/546,105 = 546,105/x
3. Step 3: Cross multiply
   355,285.50x = 546,105 × 546,105
4. Step 4: Simplify right side
   355,285.50x = 298,230,671,025
5. Step 5: Solve for x
   x = 298,230,671,025/355,285.50
6. Step 6: Final answer
   x = 839,411.32