Finding the Third Proportional to 313,379 and 477,410.50

Step by Step Solution

1. Step 1: Write the proportion equation
   313,379 : 477,410.50 = 477,410.50 : x
2. Step 2: Convert to fraction form
   313,379/477,410.50 = 477,410.50/x
3. Step 3: Cross multiply
   313,379x = 477,410.50 × 477,410.50
4. Step 4: Simplify right side
   313,379x = 227,920,785,510.25
5. Step 5: Solve for x
   x = 227,920,785,510.25/313,379
6. Step 6: Final answer
   x = 727,300.76