Finding the Third Proportional to 333,188 and 487,285.50

Step by Step Solution

1. Step 1: Write the proportion equation
   333,188 : 487,285.50 = 487,285.50 : x
2. Step 2: Convert to fraction form
   333,188/487,285.50 = 487,285.50/x
3. Step 3: Cross multiply
   333,188x = 487,285.50 × 487,285.50
4. Step 4: Simplify right side
   333,188x = 237,447,158,510.25
5. Step 5: Solve for x
   x = 237,447,158,510.25/333,188
6. Step 6: Final answer
   x = 712,652.19