Finding the Third Proportional to 423,337.69 and 603,475.50

Step by Step Solution

1. Step 1: Write the proportion equation
   423,337.69 : 603,475.50 = 603,475.50 : x
2. Step 2: Convert to fraction form
   423,337.69/603,475.50 = 603,475.50/x
3. Step 3: Cross multiply
   423,337.69x = 603,475.50 × 603,475.50
4. Step 4: Simplify right side
   423,337.69x = 364,182,679,100.25
5. Step 5: Solve for x
   x = 364,182,679,100.25/423,337.69
6. Step 6: Final answer
   x = 860,265.20