Finding the Third Proportional to 301,806 and 639,594.98

Step by Step Solution

1. Step 1: Write the proportion equation
   301,806 : 639,594.98 = 639,594.98 : x
2. Step 2: Convert to fraction form
   301,806/639,594.98 = 639,594.98/x
3. Step 3: Cross multiply
   301,806x = 639,594.98 × 639,594.98
4. Step 4: Simplify right side
   301,806x = 409,081,744,037.66
5. Step 5: Solve for x
   x = 409,081,744,037.66/301,806
6. Step 6: Final answer
   x = 1,355,446.03