Finding the Third Proportional to 355,285.50 and 546,108

Step by Step Solution

1. Step 1: Write the proportion equation
   355,285.50 : 546,108 = 546,108 : x
2. Step 2: Convert to fraction form
   355,285.50/546,108 = 546,108/x
3. Step 3: Cross multiply
   355,285.50x = 546,108 × 546,108
4. Step 4: Simplify right side
   355,285.50x = 298,233,947,664
5. Step 5: Solve for x
   x = 298,233,947,664/355,285.50
6. Step 6: Final answer
   x = 839,420.54