Finding the Third Proportional to 316,804 and 656,063.75

Step by Step Solution

1. Step 1: Write the proportion equation
   316,804 : 656,063.75 = 656,063.75 : x
2. Step 2: Convert to fraction form
   316,804/656,063.75 = 656,063.75/x
3. Step 3: Cross multiply
   316,804x = 656,063.75 × 656,063.75
4. Step 4: Simplify right side
   316,804x = 430,419,644,064.06
5. Step 5: Solve for x
   x = 430,419,644,064.06/316,804
6. Step 6: Final answer
   x = 1,358,630.71