Finding the Third Proportional to 297,199.50 and 451,476

Step by Step Solution

1. Step 1: Write the proportion equation
   297,199.50 : 451,476 = 451,476 : x
2. Step 2: Convert to fraction form
   297,199.50/451,476 = 451,476/x
3. Step 3: Cross multiply
   297,199.50x = 451,476 × 451,476
4. Step 4: Simplify right side
   297,199.50x = 203,830,578,576
5. Step 5: Solve for x
   x = 203,830,578,576/297,199.50
6. Step 6: Final answer
   x = 685,837.56