Finding the Third Proportional to 297,076.50 and 641,500.88

Step by Step Solution

1. Step 1: Write the proportion equation
   297,076.50 : 641,500.88 = 641,500.88 : x
2. Step 2: Convert to fraction form
   297,076.50/641,500.88 = 641,500.88/x
3. Step 3: Cross multiply
   297,076.50x = 641,500.88 × 641,500.88
4. Step 4: Simplify right side
   297,076.50x = 411,523,372,625.77
5. Step 5: Solve for x
   x = 411,523,372,625.77/297,076.50
6. Step 6: Final answer
   x = 1,385,243.78