Finding the Third Proportional to 334,486 and 476,816.50

Step by Step Solution

1. Step 1: Write the proportion equation
   334,486 : 476,816.50 = 476,816.50 : x
2. Step 2: Convert to fraction form
   334,486/476,816.50 = 476,816.50/x
3. Step 3: Cross multiply
   334,486x = 476,816.50 × 476,816.50
4. Step 4: Simplify right side
   334,486x = 227,353,974,672.25
5. Step 5: Solve for x
   x = 227,353,974,672.25/334,486
6. Step 6: Final answer
   x = 679,711.48