Finding the Third Proportional to 264,499.50 and 402,285

Step by Step Solution

1. Step 1: Write the proportion equation
   264,499.50 : 402,285 = 402,285 : x
2. Step 2: Convert to fraction form
   264,499.50/402,285 = 402,285/x
3. Step 3: Cross multiply
   264,499.50x = 402,285 × 402,285
4. Step 4: Simplify right side
   264,499.50x = 161,833,221,225
5. Step 5: Solve for x
   x = 161,833,221,225/264,499.50
6. Step 6: Final answer
   x = 611,846.98