Finding the Third Proportional to 313,070.06 and 670,411.69

Step by Step Solution

1. Step 1: Write the proportion equation
   313,070.06 : 670,411.69 = 670,411.69 : x
2. Step 2: Convert to fraction form
   313,070.06/670,411.69 = 670,411.69/x
3. Step 3: Cross multiply
   313,070.06x = 670,411.69 × 670,411.69
4. Step 4: Simplify right side
   313,070.06x = 449,451,830,736.60
5. Step 5: Solve for x
   x = 449,451,830,736.60/313,070.06
6. Step 6: Final answer
   x = 1,435,626.99